21019050

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{3593}}^1$

素因数の和:3624

約数の個数: 72

約数和(自身を含む): 60832044

約数和(自身を除く): 39812994

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 25, 26, 30, 39, 45, 50, 65, 75, 78, 90, 117, 130, 150, 195, 225, 234, 325, 390, 450, 585, 650, 975, 1170, 1950, 2925, 3593, 5850, 7186, 10779, 17965, 21558, 32337, 35930, 46709, 53895, 64674, 89825, 93418, 107790, 140127, 161685, 179650, 233545, 269475, 280254, 323370, 420381, 467090, 538950, 700635, 808425, 840762, 1167725, 1401270, 1616850, 2101905, 2335450, 3503175, 4203810, 7006350, 10509525, 21019050]

約数ペア:

[(1, 21019050), (2, 10509525), (3, 7006350), (5, 4203810), (6, 3503175), (9, 2335450), (10, 2101905), (13, 1616850), (15, 1401270), (18, 1167725), (25, 840762), (26, 808425), (30, 700635), (39, 538950), (45, 467090), (50, 420381), (65, 323370), (75, 280254), (78, 269475), (90, 233545), (117, 179650), (130, 161685), (150, 140127), (195, 107790), (225, 93418), (234, 89825), (325, 64674), (390, 53895), (450, 46709), (585, 35930), (650, 32337), (975, 21558), (1170, 17965), (1950, 10779), (2925, 7186), (3593, 5850)]