128835721

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{9733}}^1$

素因数の和:9832

約数の個数: 16

約数和(自身を含む): 154498048

約数和(自身を除く): 25662327

約数列:

[1, 7, 31, 61, 217, 427, 1891, 9733, 13237, 68131, 301723, 593713, 2112061, 4155991, 18405103, 128835721]

約数ペア:

[(1, 128835721), (7, 18405103), (31, 4155991), (61, 2112061), (217, 593713), (427, 301723), (1891, 68131), (9733, 13237)]