21445402

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{521}}^1\times {\mathrm{1871}}^1$

素因数の和:2405

約数の個数: 16

約数和(自身を含む): 35178624

約数和(自身を除く): 13733222

約数列:

[1, 2, 11, 22, 521, 1042, 1871, 3742, 5731, 11462, 20581, 41162, 974791, 1949582, 10722701, 21445402]

約数ペア:

[(1, 21445402), (2, 10722701), (11, 1949582), (22, 974791), (521, 41162), (1042, 20581), (1871, 11462), (3742, 5731)]