21096688275

素因数分解:

$3^3\times 5^2\times {\mathrm{13}}^2\times {\mathrm{173}}^1\times {\mathrm{1069}}^1$

素因数の和:1287

約数の個数: 144

約数和(自身を含む): 42247965600

約数和(自身を除く): 21151277325

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 117, 135, 169, 173, 195, 225, 325, 351, 507, 519, 585, 675, 845, 865, 975, 1069, 1521, 1557, 1755, 2249, 2535, 2595, 2925, 3207, 4225, 4325, 4563, 4671, 5345, 6747, 7605, 7785, 8775, 9621, 11245, 12675, 12975, 13897, 16035, 20241, 22815, 23355, 26725, 28863, 29237, 33735, 38025, 38925, 41691, 48105, 56225, 60723, 69485, 80175, 87711, 101205, 114075, 116775, 125073, 144315, 146185, 168675, 180661, 184937, 208455, 240525, 263133, 303615, 347425, 375219, 438555, 506025, 541983, 554811, 625365, 721575, 730925, 789399, 903305, 924685, 1042275, 1315665, 1518075, 1625949, 1664433, 1876095, 2192775, 2404181, 2709915, 2774055, 3126825, 3946995, 4516525, 4623425, 4877847, 4993299, 6578325, 7212543, 8129745, 8322165, 9380475, 12020905, 13549575, 13870275, 19734975, 21637629, 24389235, 24966495, 31254353, 36062715, 40648725, 41610825, 60104525, 64912887, 93763059, 108188145, 121946175, 124832475, 156271765, 180313575, 281289177, 324564435, 468815295, 540940725, 781358825, 843867531, 1406445885, 1622822175, 2344076475, 4219337655, 7032229425, 21096688275]

約数ペア:

[(1, 21096688275), (3, 7032229425), (5, 4219337655), (9, 2344076475), (13, 1622822175), (15, 1406445885), (25, 843867531), (27, 781358825), (39, 540940725), (45, 468815295), (65, 324564435), (75, 281289177), (117, 180313575), (135, 156271765), (169, 124832475), (173, 121946175), (195, 108188145), (225, 93763059), (325, 64912887), (351, 60104525), (507, 41610825), (519, 40648725), (585, 36062715), (675, 31254353), (845, 24966495), (865, 24389235), (975, 21637629), (1069, 19734975), (1521, 13870275), (1557, 13549575), (1755, 12020905), (2249, 9380475), (2535, 8322165), (2595, 8129745), (2925, 7212543), (3207, 6578325), (4225, 4993299), (4325, 4877847), (4563, 4623425), (4671, 4516525), (5345, 3946995), (6747, 3126825), (7605, 2774055), (7785, 2709915), (8775, 2404181), (9621, 2192775), (11245, 1876095), (12675, 1664433), (12975, 1625949), (13897, 1518075), (16035, 1315665), (20241, 1042275), (22815, 924685), (23355, 903305), (26725, 789399), (28863, 730925), (29237, 721575), (33735, 625365), (38025, 554811), (38925, 541983), (41691, 506025), (48105, 438555), (56225, 375219), (60723, 347425), (69485, 303615), (80175, 263133), (87711, 240525), (101205, 208455), (114075, 184937), (116775, 180661), (125073, 168675), (144315, 146185)]