20472417

素因数分解:

$3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{3037}}^1$

素因数の和:3157

約数の個数: 24

約数和(自身を含む): 34122816

約数和(自身を除く): 13650399

約数列:

[1, 3, 7, 9, 21, 63, 107, 321, 749, 963, 2247, 3037, 6741, 9111, 21259, 27333, 63777, 191331, 324959, 974877, 2274713, 2924631, 6824139, 20472417]

約数ペア:

[(1, 20472417), (3, 6824139), (7, 2924631), (9, 2274713), (21, 974877), (63, 324959), (107, 191331), (321, 63777), (749, 27333), (963, 21259), (2247, 9111), (3037, 6741)]