21781334

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{617}}^1\times {\mathrm{929}}^1$

素因数の和:1567

約数の個数: 16

約数和(自身を含む): 34484400

約数和(自身を除く): 12703066

約数列:

[1, 2, 19, 38, 617, 929, 1234, 1858, 11723, 17651, 23446, 35302, 573193, 1146386, 10890667, 21781334]

約数ペア:

[(1, 21781334), (2, 10890667), (19, 1146386), (38, 573193), (617, 35302), (929, 23446), (1234, 17651), (1858, 11723)]