18747491

素因数分解:

$7^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1\times {\mathrm{173}}^1$

素因数の和:430

約数の個数: 16

約数和(自身を含む): 21898944

約数和(自身を除く): 3151453

約数列:

[1, 7, 113, 137, 173, 791, 959, 1211, 15481, 19549, 23701, 108367, 136843, 165907, 2678213, 18747491]

約数ペア:

[(1, 18747491), (7, 2678213), (113, 165907), (137, 136843), (173, 108367), (791, 23701), (959, 19549), (1211, 15481)]