21046487

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{617}}^1$

素因数の和:1078

約数の個数: 16

約数和(自身を含む): 26341632

約数和(自身を除く): 5295145

約数列:

[1, 7, 11, 77, 443, 617, 3101, 4319, 4873, 6787, 34111, 47509, 273331, 1913317, 3006641, 21046487]

約数ペア:

[(1, 21046487), (7, 3006641), (11, 1913317), (77, 273331), (443, 47509), (617, 34111), (3101, 6787), (4319, 4873)]