218971389

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{8269}}^1$

素因数の和:8389

約数の個数: 32

約数和(自身を含む): 363086080

約数和(自身を除く): 144114691

約数列:

[1, 3, 7, 13, 21, 39, 91, 97, 273, 291, 679, 1261, 2037, 3783, 8269, 8827, 24807, 26481, 57883, 107497, 173649, 322491, 752479, 802093, 2257437, 2406279, 5614651, 10427209, 16843953, 31281627, 72990463, 218971389]

約数ペア:

[(1, 218971389), (3, 72990463), (7, 31281627), (13, 16843953), (21, 10427209), (39, 5614651), (91, 2406279), (97, 2257437), (273, 802093), (291, 752479), (679, 322491), (1261, 173649), (2037, 107497), (3783, 57883), (8269, 26481), (8827, 24807)]