20218988321

素因数分解:

$7^1\times {\mathrm{809}}^1\times {\mathrm{971}}^1\times {\mathrm{3677}}^1$

素因数の和:5464

約数の個数: 16

約数和(自身を含む): 23166103680

約数和(自身を除く): 2947115359

約数列:

[1, 7, 809, 971, 3677, 5663, 6797, 25739, 785539, 2974693, 3570367, 5498773, 20822851, 24992569, 2888426903, 20218988321]

約数ペア:

[(1, 20218988321), (7, 2888426903), (809, 24992569), (971, 20822851), (3677, 5498773), (5663, 3570367), (6797, 2974693), (25739, 785539)]