20512472968

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{197235317}}^1$

素因数の和:197235336

約数の個数: 16

約数和(自身を含む): 41419416780

約数和(自身を除く): 20906943812

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 197235317, 394470634, 788941268, 1577882536, 2564059121, 5128118242, 10256236484, 20512472968]

約数ペア:

[(1, 20512472968), (2, 10256236484), (4, 5128118242), (8, 2564059121), (13, 1577882536), (26, 788941268), (52, 394470634), (104, 197235317)]