807804981

素因数分解:

$3^4\times {\mathrm{373}}^1\times {\mathrm{26737}}^1$

素因数の和:27122

約数の個数: 20

約数和(自身を含む): 1210001452

約数和(自身を除く): 402196471

約数列:

[1, 3, 9, 27, 81, 373, 1119, 3357, 10071, 26737, 30213, 80211, 240633, 721899, 2165697, 9972901, 29918703, 89756109, 269268327, 807804981]

約数ペア:

[(1, 807804981), (3, 269268327), (9, 89756109), (27, 29918703), (81, 9972901), (373, 2165697), (1119, 721899), (3357, 240633), (10071, 80211), (26737, 30213)]