77799978

素因数分解:

$2^1\times 3^2\times {\mathrm{4322221}}^1$

素因数の和:4322229

約数の個数: 12

約数和(自身を含む): 168566658

約数和(自身を除く): 90766680

約数列:

[1, 2, 3, 6, 9, 18, 4322221, 8644442, 12966663, 25933326, 38899989, 77799978]

約数ペア:

[(1, 77799978), (2, 38899989), (3, 25933326), (6, 12966663), (9, 8644442), (18, 4322221)]