81774081

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{25169}}^1$

素因数の和:25213

約数の個数: 18

約数和(自身を含む): 124667010

約数和(自身を除く): 42892929

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 25169, 75507, 226521, 478211, 1434633, 4303899, 9086009, 27258027, 81774081]

約数ペア:

[(1, 81774081), (3, 27258027), (9, 9086009), (19, 4303899), (57, 1434633), (171, 478211), (361, 226521), (1083, 75507), (3249, 25169)]