28704709

素因数分解:

${\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{3889}}^1$

素因数の和:3972

約数の個数: 12

約数和(自身を含む): 32076940

約数和(自身を除く): 3372231

約数列:

[1, 11, 61, 121, 671, 3889, 7381, 42779, 237229, 470569, 2609519, 28704709]

約数ペア:

[(1, 28704709), (11, 2609519), (61, 470569), (121, 237229), (671, 42779), (3889, 7381)]