778836321

素因数分解:

$3^2\times {\mathrm{139}}^1\times {\mathrm{622571}}^1$

素因数の和:622716

約数の個数: 12

約数和(自身を含む): 1133081040

約数和(自身を除く): 354244719

約数列:

[1, 3, 9, 139, 417, 1251, 622571, 1867713, 5603139, 86537369, 259612107, 778836321]

約数ペア:

[(1, 778836321), (3, 259612107), (9, 86537369), (139, 5603139), (417, 1867713), (1251, 622571)]