20697565

素因数分解:

$5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{8329}}^1$

素因数の和:8412

約数の個数: 16

約数和(自身を含む): 28788480

約数和(自身を除く): 8090915

約数列:

[1, 5, 7, 35, 71, 355, 497, 2485, 8329, 41645, 58303, 291515, 591359, 2956795, 4139513, 20697565]

約数ペア:

[(1, 20697565), (5, 4139513), (7, 2956795), (35, 591359), (71, 291515), (355, 58303), (497, 41645), (2485, 8329)]