18405351

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1609}}^1$

素因数の和:1687

約数の個数: 24

約数和(自身を含む): 28129920

約数和(自身を除く): 9724569

約数列:

[1, 3, 9, 31, 41, 93, 123, 279, 369, 1271, 1609, 3813, 4827, 11439, 14481, 49879, 65969, 149637, 197907, 448911, 593721, 2045039, 6135117, 18405351]

約数ペア:

[(1, 18405351), (3, 6135117), (9, 2045039), (31, 593721), (41, 448911), (93, 197907), (123, 149637), (279, 65969), (369, 49879), (1271, 14481), (1609, 11439), (3813, 4827)]