128331

素因数分解:

$3^3\times 7^2\times {\mathrm{97}}^1$

素因数の和:120

約数の個数: 24

約数和(自身を含む): 223440

約数和(自身を除く): 95109

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 97, 147, 189, 291, 441, 679, 873, 1323, 2037, 2619, 4753, 6111, 14259, 18333, 42777, 128331]

約数ペア:

[(1, 128331), (3, 42777), (7, 18333), (9, 14259), (21, 6111), (27, 4753), (49, 2619), (63, 2037), (97, 1323), (147, 873), (189, 679), (291, 441)]