20997804961

素因数分解:

$7^1\times {\mathrm{151}}^1\times {\mathrm{3571}}^1\times {\mathrm{5563}}^1$

素因数の和:9292

約数の個数: 16

約数和(自身を含む): 24167523328

約数和(自身を除く): 3169718367

約数列:

[1, 7, 151, 1057, 3571, 5563, 24997, 38941, 539221, 840013, 3774547, 5880091, 19865473, 139058311, 2999686423, 20997804961]

約数ペア:

[(1, 20997804961), (7, 2999686423), (151, 139058311), (1057, 19865473), (3571, 5880091), (5563, 3774547), (24997, 840013), (38941, 539221)]