18894159

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{281}}^1$

素因数の和:559

約数の個数: 24

約数和(自身を含む): 28389504

約数和(自身を除く): 9495345

約数列:

[1, 3, 9, 31, 93, 241, 279, 281, 723, 843, 2169, 2529, 7471, 8711, 22413, 26133, 67239, 67721, 78399, 203163, 609489, 2099351, 6298053, 18894159]

約数ペア:

[(1, 18894159), (3, 6298053), (9, 2099351), (31, 609489), (93, 203163), (241, 78399), (279, 67721), (281, 67239), (723, 26133), (843, 22413), (2169, 8711), (2529, 7471)]