21381702

素因数分解:

$2^1\times 3^1\times {\mathrm{409}}^1\times {\mathrm{8713}}^1$

素因数の和:9127

約数の個数: 16

約数和(自身を含む): 42872880

約数和(自身を除く): 21491178

約数列:

[1, 2, 3, 6, 409, 818, 1227, 2454, 8713, 17426, 26139, 52278, 3563617, 7127234, 10690851, 21381702]

約数ペア:

[(1, 21381702), (2, 10690851), (3, 7127234), (6, 3563617), (409, 52278), (818, 26139), (1227, 17426), (2454, 8713)]