81368559

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{220511}}^1$

素因数の和:220558

約数の個数: 12

約数和(自身を含む): 120399552

約数和(自身を除く): 39030993

約数列:

[1, 3, 9, 41, 123, 369, 220511, 661533, 1984599, 9040951, 27122853, 81368559]

約数ペア:

[(1, 81368559), (3, 27122853), (9, 9040951), (41, 1984599), (123, 661533), (369, 220511)]