21111002

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{15731}}^1$

素因数の和:15805

約数の個数: 16

約数和(自身を含む): 35113824

約数和(自身を除く): 14002822

約数列:

[1, 2, 11, 22, 61, 122, 671, 1342, 15731, 31462, 173041, 346082, 959591, 1919182, 10555501, 21111002]

約数ペア:

[(1, 21111002), (2, 10555501), (11, 1919182), (22, 959591), (61, 346082), (122, 173041), (671, 31462), (1342, 15731)]