21262360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{75937}}^1$

素因数の和:75955

約数の個数: 32

約数和(自身を含む): 54675360

約数和(自身を除く): 33413000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 75937, 151874, 303748, 379685, 531559, 607496, 759370, 1063118, 1518740, 2126236, 2657795, 3037480, 4252472, 5315590, 10631180, 21262360]

約数ペア:

[(1, 21262360), (2, 10631180), (4, 5315590), (5, 4252472), (7, 3037480), (8, 2657795), (10, 2126236), (14, 1518740), (20, 1063118), (28, 759370), (35, 607496), (40, 531559), (56, 379685), (70, 303748), (140, 151874), (280, 75937)]