31513279

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{389}}^1$

素因数の和:630

約数の個数: 16

約数和(自身を含む): 36840960

約数和(自身を除く): 5327681

約数列:

[1, 7, 71, 163, 389, 497, 1141, 2723, 11573, 27619, 63407, 81011, 193333, 443849, 4501897, 31513279]

約数ペア:

[(1, 31513279), (7, 4501897), (71, 443849), (163, 193333), (389, 81011), (497, 63407), (1141, 27619), (2723, 11573)]