20968606

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{1553}}^1$

素因数の和:1755

約数の個数: 16

約数和(自身を含む): 32410224

約数和(自身を除く): 11441618

約数列:

[1, 2, 43, 86, 157, 314, 1553, 3106, 6751, 13502, 66779, 133558, 243821, 487642, 10484303, 20968606]

約数ペア:

[(1, 20968606), (2, 10484303), (43, 487642), (86, 243821), (157, 133558), (314, 66779), (1553, 13502), (3106, 6751)]