1991330505

素因数分解:

$3^2\times 5^1\times {\mathrm{44251789}}^1$

素因数の和:44251800

約数の個数: 12

約数和(自身を含む): 3451639620

約数和(自身を除く): 1460309115

約数列:

[1, 3, 5, 9, 15, 45, 44251789, 132755367, 221258945, 398266101, 663776835, 1991330505]

約数ペア:

[(1, 1991330505), (3, 663776835), (5, 398266101), (9, 221258945), (15, 132755367), (45, 44251789)]