21399300

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:123

約数の個数: 216

約数和(自身を含む): 75828480

約数和(自身を除く): 54429180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 25, 26, 30, 31, 36, 39, 45, 50, 52, 59, 60, 62, 65, 75, 78, 90, 93, 100, 117, 118, 124, 130, 150, 155, 156, 177, 180, 186, 195, 225, 234, 236, 260, 279, 295, 300, 310, 325, 354, 372, 390, 403, 450, 465, 468, 531, 558, 585, 590, 620, 650, 708, 767, 775, 780, 806, 885, 900, 930, 975, 1062, 1116, 1170, 1180, 1209, 1300, 1395, 1475, 1534, 1550, 1612, 1770, 1829, 1860, 1950, 2015, 2124, 2301, 2325, 2340, 2418, 2655, 2790, 2925, 2950, 3068, 3100, 3540, 3627, 3658, 3835, 3900, 4030, 4425, 4602, 4650, 4836, 5310, 5487, 5580, 5850, 5900, 6045, 6903, 6975, 7254, 7316, 7670, 8060, 8850, 9145, 9204, 9300, 10075, 10620, 10974, 11505, 11700, 12090, 13275, 13806, 13950, 14508, 15340, 16461, 17700, 18135, 18290, 19175, 20150, 21948, 23010, 23777, 24180, 26550, 27435, 27612, 27900, 30225, 32922, 34515, 36270, 36580, 38350, 40300, 45725, 46020, 47554, 53100, 54870, 57525, 60450, 65844, 69030, 71331, 72540, 76700, 82305, 90675, 91450, 95108, 109740, 115050, 118885, 120900, 137175, 138060, 142662, 164610, 172575, 181350, 182900, 213993, 230100, 237770, 274350, 285324, 329220, 345150, 356655, 362700, 411525, 427986, 475540, 548700, 594425, 690300, 713310, 823050, 855972, 1069965, 1188850, 1426620, 1646100, 1783275, 2139930, 2377700, 3566550, 4279860, 5349825, 7133100, 10699650, 21399300]

約数ペア:

[(1, 21399300), (2, 10699650), (3, 7133100), (4, 5349825), (5, 4279860), (6, 3566550), (9, 2377700), (10, 2139930), (12, 1783275), (13, 1646100), (15, 1426620), (18, 1188850), (20, 1069965), (25, 855972), (26, 823050), (30, 713310), (31, 690300), (36, 594425), (39, 548700), (45, 475540), (50, 427986), (52, 411525), (59, 362700), (60, 356655), (62, 345150), (65, 329220), (75, 285324), (78, 274350), (90, 237770), (93, 230100), (100, 213993), (117, 182900), (118, 181350), (124, 172575), (130, 164610), (150, 142662), (155, 138060), (156, 137175), (177, 120900), (180, 118885), (186, 115050), (195, 109740), (225, 95108), (234, 91450), (236, 90675), (260, 82305), (279, 76700), (295, 72540), (300, 71331), (310, 69030), (325, 65844), (354, 60450), (372, 57525), (390, 54870), (403, 53100), (450, 47554), (465, 46020), (468, 45725), (531, 40300), (558, 38350), (585, 36580), (590, 36270), (620, 34515), (650, 32922), (708, 30225), (767, 27900), (775, 27612), (780, 27435), (806, 26550), (885, 24180), (900, 23777), (930, 23010), (975, 21948), (1062, 20150), (1116, 19175), (1170, 18290), (1180, 18135), (1209, 17700), (1300, 16461), (1395, 15340), (1475, 14508), (1534, 13950), (1550, 13806), (1612, 13275), (1770, 12090), (1829, 11700), (1860, 11505), (1950, 10974), (2015, 10620), (2124, 10075), (2301, 9300), (2325, 9204), (2340, 9145), (2418, 8850), (2655, 8060), (2790, 7670), (2925, 7316), (2950, 7254), (3068, 6975), (3100, 6903), (3540, 6045), (3627, 5900), (3658, 5850), (3835, 5580), (3900, 5487), (4030, 5310), (4425, 4836), (4602, 4650)]