20981030398

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{313}}^1\times {\mathrm{549443}}^1$

素因数の和:549819

約数の個数: 16

約数和(自身を含む): 32089727376

約数和(自身を除く): 11108696978

約数列:

[1, 2, 61, 122, 313, 626, 19093, 38186, 549443, 1098886, 33516023, 67032046, 171975659, 343951318, 10490515199, 20981030398]

約数ペア:

[(1, 20981030398), (2, 10490515199), (61, 343951318), (122, 171975659), (313, 67032046), (626, 33516023), (19093, 1098886), (38186, 549443)]