220759

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:126

約数の個数: 16

約数和(自身を含む): 285696

約数和(自身を除く): 64937

約数列:

[1, 7, 11, 47, 61, 77, 329, 427, 517, 671, 2867, 3619, 4697, 20069, 31537, 220759]

約数ペア:

[(1, 220759), (7, 31537), (11, 20069), (47, 4697), (61, 3619), (77, 2867), (329, 671), (427, 517)]