21037750

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:182

約数の個数: 64

約数和(自身を含む): 42831360

約数和(自身を除く): 21793610

約数列:

[1, 2, 5, 10, 19, 25, 38, 43, 50, 86, 95, 103, 125, 190, 206, 215, 250, 430, 475, 515, 817, 950, 1030, 1075, 1634, 1957, 2150, 2375, 2575, 3914, 4085, 4429, 4750, 5150, 5375, 8170, 8858, 9785, 10750, 12875, 19570, 20425, 22145, 25750, 40850, 44290, 48925, 84151, 97850, 102125, 110725, 168302, 204250, 221450, 244625, 420755, 489250, 553625, 841510, 1107250, 2103775, 4207550, 10518875, 21037750]

約数ペア:

[(1, 21037750), (2, 10518875), (5, 4207550), (10, 2103775), (19, 1107250), (25, 841510), (38, 553625), (43, 489250), (50, 420755), (86, 244625), (95, 221450), (103, 204250), (125, 168302), (190, 110725), (206, 102125), (215, 97850), (250, 84151), (430, 48925), (475, 44290), (515, 40850), (817, 25750), (950, 22145), (1030, 20425), (1075, 19570), (1634, 12875), (1957, 10750), (2150, 9785), (2375, 8858), (2575, 8170), (3914, 5375), (4085, 5150), (4429, 4750)]