81018021

素因数分解:

$3^1\times 7^2\times {\mathrm{551143}}^1$

素因数の和:551160

約数の個数: 12

約数和(自身を含む): 125660832

約数和(自身を除く): 44642811

約数列:

[1, 3, 7, 21, 49, 147, 551143, 1653429, 3858001, 11574003, 27006007, 81018021]

約数ペア:

[(1, 81018021), (3, 27006007), (7, 11574003), (21, 3858001), (49, 1653429), (147, 551143)]