1218393

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:445

約数の個数: 24

約数和(自身を含む): 1986816

約数和(自身を除く): 768423

約数列:

[1, 3, 9, 11, 31, 33, 93, 99, 279, 341, 397, 1023, 1191, 3069, 3573, 4367, 12307, 13101, 36921, 39303, 110763, 135377, 406131, 1218393]

約数ペア:

[(1, 1218393), (3, 406131), (9, 135377), (11, 110763), (31, 39303), (33, 36921), (93, 13101), (99, 12307), (279, 4367), (341, 3573), (397, 3069), (1023, 1191)]