18228868

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{21001}}^1$

素因数の和:21043

約数の個数: 24

約数和(自身を含む): 37635584

約数和(自身を除く): 19406716

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 21001, 42002, 84004, 147007, 294014, 588028, 651031, 1302062, 2604124, 4557217, 9114434, 18228868]

約数ペア:

[(1, 18228868), (2, 9114434), (4, 4557217), (7, 2604124), (14, 1302062), (28, 651031), (31, 588028), (62, 294014), (124, 147007), (217, 84004), (434, 42002), (868, 21001)]