80865981

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{31307}}^1$

素因数の和:31361

約数の個数: 24

約数和(自身を含む): 136753344

約数和(自身を除く): 55887363

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 31307, 93921, 219149, 281763, 657447, 1283587, 1972341, 3850761, 8985109, 11552283, 26955327, 80865981]

約数ペア:

[(1, 80865981), (3, 26955327), (7, 11552283), (9, 8985109), (21, 3850761), (41, 1972341), (63, 1283587), (123, 657447), (287, 281763), (369, 219149), (861, 93921), (2583, 31307)]