20961974

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{5323}}^1$

素因数の和:5515

約数の個数: 16

約数和(自身を含む): 34499520

約数和(自身を除く): 13537546

約数列:

[1, 2, 11, 22, 179, 358, 1969, 3938, 5323, 10646, 58553, 117106, 952817, 1905634, 10480987, 20961974]

約数ペア:

[(1, 20961974), (2, 10480987), (11, 1905634), (22, 952817), (179, 117106), (358, 58553), (1969, 10646), (3938, 5323)]