20472641

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{3511}}^1$

素因数の和:3549

約数の個数: 16

約数和(自身を含む): 25286400

約数和(自身を除く): 4813759

約数列:

[1, 7, 17, 49, 119, 343, 833, 3511, 5831, 24577, 59687, 172039, 417809, 1204273, 2924663, 20472641]

約数ペア:

[(1, 20472641), (7, 2924663), (17, 1204273), (49, 417809), (119, 172039), (343, 59687), (833, 24577), (3511, 5831)]