20199304418

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{521}}^1\times {\mathrm{317789}}^1$

素因数の和:318373

約数の個数: 16

約数和(自身を含む): 30854866680

約数和(自身を除く): 10655562262

約数列:

[1, 2, 61, 122, 521, 1042, 31781, 63562, 317789, 635578, 19385129, 38770258, 165568069, 331136138, 10099652209, 20199304418]

約数ペア:

[(1, 20199304418), (2, 10099652209), (61, 331136138), (122, 165568069), (521, 38770258), (1042, 19385129), (31781, 635578), (63562, 317789)]