20117251

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{4283}}^1$

素因数の和:4362

約数の個数: 16

約数和(自身を含む): 25498368

約数和(自身を除く): 5381117

約数列:

[1, 7, 11, 61, 77, 427, 671, 4283, 4697, 29981, 47113, 261263, 329791, 1828841, 2873893, 20117251]

約数ペア:

[(1, 20117251), (7, 2873893), (11, 1828841), (61, 329791), (77, 261263), (427, 47113), (671, 29981), (4283, 4697)]