21628239

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{271}}^1\times {\mathrm{719}}^1$

素因数の和:1030

約数の個数: 16

約数和(自身を含む): 29767680

約数和(自身を除く): 8139441

約数列:

[1, 3, 37, 111, 271, 719, 813, 2157, 10027, 26603, 30081, 79809, 194849, 584547, 7209413, 21628239]

約数ペア:

[(1, 21628239), (3, 7209413), (37, 584547), (111, 194849), (271, 79809), (719, 30081), (813, 26603), (2157, 10027)]