978171428

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{18810989}}^1$

素因数の和:18811006

約数の個数: 12

約数和(自身を含む): 1843477020

約数和(自身を除く): 865305592

約数列:

[1, 2, 4, 13, 26, 52, 18810989, 37621978, 75243956, 244542857, 489085714, 978171428]

約数ペア:

[(1, 978171428), (2, 489085714), (4, 244542857), (13, 75243956), (26, 37621978), (52, 18810989)]