21768968

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{209317}}^1$

素因数の和:209336

約数の個数: 16

約数和(自身を含む): 43956780

約数和(自身を除く): 22187812

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 209317, 418634, 837268, 1674536, 2721121, 5442242, 10884484, 21768968]

約数ペア:

[(1, 21768968), (2, 10884484), (4, 5442242), (8, 2721121), (13, 1674536), (26, 837268), (52, 418634), (104, 209317)]