21167416900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{331}}^1\times {\mathrm{421}}^1$

素因数の和:811

約数の個数: 216

約数和(自身を含む): 55454284032

約数和(自身を除く): 34286867132

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 49, 50, 62, 70, 98, 100, 124, 140, 155, 175, 196, 217, 245, 310, 331, 350, 421, 434, 490, 620, 662, 700, 775, 842, 868, 980, 1085, 1225, 1324, 1519, 1550, 1655, 1684, 2105, 2170, 2317, 2450, 2947, 3038, 3100, 3310, 4210, 4340, 4634, 4900, 5425, 5894, 6076, 6620, 7595, 8275, 8420, 9268, 10261, 10525, 10850, 11585, 11788, 13051, 14735, 15190, 16219, 16550, 20522, 20629, 21050, 21700, 23170, 26102, 29470, 30380, 32438, 33100, 37975, 41044, 41258, 42100, 46340, 51305, 52204, 57925, 58940, 64876, 65255, 71827, 73675, 75950, 81095, 82516, 91357, 102610, 103145, 115850, 130510, 139351, 143654, 147350, 151900, 162190, 182714, 205220, 206290, 231700, 256525, 261020, 278702, 287308, 294700, 324380, 326275, 359135, 365428, 405475, 412580, 456785, 502789, 513050, 515725, 557404, 639499, 652550, 696755, 718270, 810950, 913570, 975457, 1005578, 1026100, 1031450, 1278998, 1305100, 1393510, 1436540, 1621900, 1795675, 1827140, 1950914, 2011156, 2062900, 2283925, 2513945, 2557996, 2787020, 3197495, 3483775, 3591350, 3901828, 4319881, 4567850, 4877285, 5027890, 6394990, 6828199, 6967550, 7182700, 8639762, 9135700, 9754570, 10055780, 12569725, 12789980, 13656398, 13935100, 15987475, 17279524, 19509140, 21599405, 24386425, 25139450, 27312796, 30239167, 31974950, 34140995, 43198810, 48772850, 50278900, 60478334, 63949900, 68281990, 86397620, 97545700, 107997025, 120956668, 136563980, 151195835, 170704975, 211674169, 215994050, 302391670, 341409950, 423348338, 431988100, 604783340, 682819900, 755979175, 846696676, 1058370845, 1511958350, 2116741690, 3023916700, 4233483380, 5291854225, 10583708450, 21167416900]

約数ペア:

[(1, 21167416900), (2, 10583708450), (4, 5291854225), (5, 4233483380), (7, 3023916700), (10, 2116741690), (14, 1511958350), (20, 1058370845), (25, 846696676), (28, 755979175), (31, 682819900), (35, 604783340), (49, 431988100), (50, 423348338), (62, 341409950), (70, 302391670), (98, 215994050), (100, 211674169), (124, 170704975), (140, 151195835), (155, 136563980), (175, 120956668), (196, 107997025), (217, 97545700), (245, 86397620), (310, 68281990), (331, 63949900), (350, 60478334), (421, 50278900), (434, 48772850), (490, 43198810), (620, 34140995), (662, 31974950), (700, 30239167), (775, 27312796), (842, 25139450), (868, 24386425), (980, 21599405), (1085, 19509140), (1225, 17279524), (1324, 15987475), (1519, 13935100), (1550, 13656398), (1655, 12789980), (1684, 12569725), (2105, 10055780), (2170, 9754570), (2317, 9135700), (2450, 8639762), (2947, 7182700), (3038, 6967550), (3100, 6828199), (3310, 6394990), (4210, 5027890), (4340, 4877285), (4634, 4567850), (4900, 4319881), (5425, 3901828), (5894, 3591350), (6076, 3483775), (6620, 3197495), (7595, 2787020), (8275, 2557996), (8420, 2513945), (9268, 2283925), (10261, 2062900), (10525, 2011156), (10850, 1950914), (11585, 1827140), (11788, 1795675), (13051, 1621900), (14735, 1436540), (15190, 1393510), (16219, 1305100), (16550, 1278998), (20522, 1031450), (20629, 1026100), (21050, 1005578), (21700, 975457), (23170, 913570), (26102, 810950), (29470, 718270), (30380, 696755), (32438, 652550), (33100, 639499), (37975, 557404), (41044, 515725), (41258, 513050), (42100, 502789), (46340, 456785), (51305, 412580), (52204, 405475), (57925, 365428), (58940, 359135), (64876, 326275), (65255, 324380), (71827, 294700), (73675, 287308), (75950, 278702), (81095, 261020), (82516, 256525), (91357, 231700), (102610, 206290), (103145, 205220), (115850, 182714), (130510, 162190), (139351, 151900), (143654, 147350)]