20198456876

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{388431863}}^1$

素因数の和:388431880

約数の個数: 12

約数和(自身を含む): 38066322672

約数和(自身を除く): 17867865796

約数列:

[1, 2, 4, 13, 26, 52, 388431863, 776863726, 1553727452, 5049614219, 10099228438, 20198456876]

約数ペア:

[(1, 20198456876), (2, 10099228438), (4, 5049614219), (13, 1553727452), (26, 776863726), (52, 388431863)]