20338798

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1\times {\mathrm{521}}^1$

素因数の和:803

約数の個数: 16

約数和(自身を含む): 31006800

約数和(自身を除く): 10668002

約数列:

[1, 2, 131, 149, 262, 298, 521, 1042, 19519, 39038, 68251, 77629, 136502, 155258, 10169399, 20338798]

約数ペア:

[(1, 20338798), (2, 10169399), (131, 155258), (149, 136502), (262, 77629), (298, 68251), (521, 39038), (1042, 19519)]