21475960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{48809}}^1$

素因数の和:48831

約数の個数: 32

約数和(自身を含む): 52714800

約数和(自身を除く): 31238840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 48809, 97618, 195236, 244045, 390472, 488090, 536899, 976180, 1073798, 1952360, 2147596, 2684495, 4295192, 5368990, 10737980, 21475960]

約数ペア:

[(1, 21475960), (2, 10737980), (4, 5368990), (5, 4295192), (8, 2684495), (10, 2147596), (11, 1952360), (20, 1073798), (22, 976180), (40, 536899), (44, 488090), (55, 390472), (88, 244045), (110, 195236), (220, 97618), (440, 48809)]