80813943

素因数分解:

$3^4\times 7^1\times {\mathrm{142529}}^1$

素因数の和:142548

約数の個数: 20

約数和(自身を含む): 137969040

約数和(自身を除く): 57155097

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 142529, 427587, 997703, 1282761, 2993109, 3848283, 8979327, 11544849, 26937981, 80813943]

約数ペア:

[(1, 80813943), (3, 26937981), (7, 11544849), (9, 8979327), (21, 3848283), (27, 2993109), (63, 1282761), (81, 997703), (189, 427587), (567, 142529)]