1393669221

素因数分解:

$3^1\times 7^2\times {\mathrm{9480743}}^1$

素因数の和:9480760

約数の個数: 12

約数和(自身を含む): 2161609632

約数和(自身を除く): 767940411

約数列:

[1, 3, 7, 21, 49, 147, 9480743, 28442229, 66365201, 199095603, 464556407, 1393669221]

約数ペア:

[(1, 1393669221), (3, 464556407), (7, 199095603), (21, 66365201), (49, 28442229), (147, 9480743)]