21931650

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:217

約数の個数: 144

約数和(自身を含む): 66620736

約数和(自身を除く): 44689086

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 23, 25, 26, 30, 39, 45, 46, 50, 65, 69, 75, 78, 90, 115, 117, 130, 138, 150, 163, 195, 207, 225, 230, 234, 299, 325, 326, 345, 390, 414, 450, 489, 575, 585, 598, 650, 690, 815, 897, 975, 978, 1035, 1150, 1170, 1467, 1495, 1630, 1725, 1794, 1950, 2070, 2119, 2445, 2691, 2925, 2934, 2990, 3450, 3749, 4075, 4238, 4485, 4890, 5175, 5382, 5850, 6357, 7335, 7475, 7498, 8150, 8970, 10350, 10595, 11247, 12225, 12714, 13455, 14670, 14950, 18745, 19071, 21190, 22425, 22494, 24450, 26910, 31785, 33741, 36675, 37490, 38142, 44850, 48737, 52975, 56235, 63570, 67275, 67482, 73350, 93725, 95355, 97474, 105950, 112470, 134550, 146211, 158925, 168705, 187450, 190710, 243685, 281175, 292422, 317850, 337410, 438633, 476775, 487370, 562350, 731055, 843525, 877266, 953550, 1218425, 1462110, 1687050, 2193165, 2436850, 3655275, 4386330, 7310550, 10965825, 21931650]

約数ペア:

[(1, 21931650), (2, 10965825), (3, 7310550), (5, 4386330), (6, 3655275), (9, 2436850), (10, 2193165), (13, 1687050), (15, 1462110), (18, 1218425), (23, 953550), (25, 877266), (26, 843525), (30, 731055), (39, 562350), (45, 487370), (46, 476775), (50, 438633), (65, 337410), (69, 317850), (75, 292422), (78, 281175), (90, 243685), (115, 190710), (117, 187450), (130, 168705), (138, 158925), (150, 146211), (163, 134550), (195, 112470), (207, 105950), (225, 97474), (230, 95355), (234, 93725), (299, 73350), (325, 67482), (326, 67275), (345, 63570), (390, 56235), (414, 52975), (450, 48737), (489, 44850), (575, 38142), (585, 37490), (598, 36675), (650, 33741), (690, 31785), (815, 26910), (897, 24450), (975, 22494), (978, 22425), (1035, 21190), (1150, 19071), (1170, 18745), (1467, 14950), (1495, 14670), (1630, 13455), (1725, 12714), (1794, 12225), (1950, 11247), (2070, 10595), (2119, 10350), (2445, 8970), (2691, 8150), (2925, 7498), (2934, 7475), (2990, 7335), (3450, 6357), (3749, 5850), (4075, 5382), (4238, 5175), (4485, 4890)]