20975801

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{823}}^1$

素因数の和:1172

約数の個数: 16

約数和(自身を含む): 26262528

約数和(自身を除く): 5286727

約数列:

[1, 7, 11, 77, 331, 823, 2317, 3641, 5761, 9053, 25487, 63371, 272413, 1906891, 2996543, 20975801]

約数ペア:

[(1, 20975801), (7, 2996543), (11, 1906891), (77, 272413), (331, 63371), (823, 25487), (2317, 9053), (3641, 5761)]