20704984

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{136217}}^1$

素因数の和:136242

約数の個数: 16

約数和(自身を含む): 40865400

約数和(自身を除く): 20160416

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 136217, 272434, 544868, 1089736, 2588123, 5176246, 10352492, 20704984]

約数ペア:

[(1, 20704984), (2, 10352492), (4, 5176246), (8, 2588123), (19, 1089736), (38, 544868), (76, 272434), (152, 136217)]