18781862

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{77611}}^1$

素因数の和:77635

約数の個数: 12

約数和(自身を含む): 30967188

約数和(自身を除く): 12185326

約数列:

[1, 2, 11, 22, 121, 242, 77611, 155222, 853721, 1707442, 9390931, 18781862]

約数ペア:

[(1, 18781862), (2, 9390931), (11, 1707442), (22, 853721), (121, 155222), (242, 77611)]