81423898

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1\times {\mathrm{2659}}^1$

素因数の和:2973

約数の個数: 16

約数和(自身を含む): 124679520

約数和(自身を除く): 43255622

約数列:

[1, 2, 61, 122, 251, 502, 2659, 5318, 15311, 30622, 162199, 324398, 667409, 1334818, 40711949, 81423898]

約数ペア:

[(1, 81423898), (2, 40711949), (61, 1334818), (122, 667409), (251, 324398), (502, 162199), (2659, 30622), (5318, 15311)]