20199498021

素因数分解:

$3^2\times {\mathrm{20807}}^1\times {\mathrm{107867}}^1$

素因数の和:128680

約数の個数: 12

約数和(自身を含む): 29178725472

約数和(自身を除く): 8979227451

約数列:

[1, 3, 9, 20807, 62421, 107867, 187263, 323601, 970803, 2244388669, 6733166007, 20199498021]

約数ペア:

[(1, 20199498021), (3, 6733166007), (9, 2244388669), (20807, 970803), (62421, 323601), (107867, 187263)]