20959090

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{110311}}^1$

素因数の和:110337

約数の個数: 16

約数和(自身を含む): 39712320

約数和(自身を除く): 18753230

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 110311, 220622, 551555, 1103110, 2095909, 4191818, 10479545, 20959090]

約数ペア:

[(1, 20959090), (2, 10479545), (5, 4191818), (10, 2095909), (19, 1103110), (38, 551555), (95, 220622), (190, 110311)]