80491401

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{21143}}^1$

素因数の和:21202

約数の個数: 20

約数和(自身を含む): 122804352

約数和(自身を除く): 42312951

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 21143, 63429, 190287, 570861, 993721, 1712583, 2981163, 8943489, 26830467, 80491401]

約数ペア:

[(1, 80491401), (3, 26830467), (9, 8943489), (27, 2981163), (47, 1712583), (81, 993721), (141, 570861), (423, 190287), (1269, 63429), (3807, 21143)]