19816826

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{1279}}^1$

素因数の和:1469

約数の個数: 16

約数和(自身を含む): 30474240

約数和(自身を除く): 10657414

約数列:

[1, 2, 61, 122, 127, 254, 1279, 2558, 7747, 15494, 78019, 156038, 162433, 324866, 9908413, 19816826]

約数ペア:

[(1, 19816826), (2, 9908413), (61, 324866), (122, 162433), (127, 156038), (254, 78019), (1279, 15494), (2558, 7747)]