21591548

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{881}}^1$

素因数の和:1453

約数の個数: 24

約数和(自身を含む): 41341104

約数和(自身を除く): 19749556

約数列:

[1, 2, 4, 11, 22, 44, 557, 881, 1114, 1762, 2228, 3524, 6127, 9691, 12254, 19382, 24508, 38764, 490717, 981434, 1962868, 5397887, 10795774, 21591548]

約数ペア:

[(1, 21591548), (2, 10795774), (4, 5397887), (11, 1962868), (22, 981434), (44, 490717), (557, 38764), (881, 24508), (1114, 19382), (1762, 12254), (2228, 9691), (3524, 6127)]