20768156968

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{199693817}}^1$

素因数の和:199693836

約数の個数: 16

約数和(自身を含む): 41935701780

約数和(自身を除く): 21167544812

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 199693817, 399387634, 798775268, 1597550536, 2596019621, 5192039242, 10384078484, 20768156968]

約数ペア:

[(1, 20768156968), (2, 10384078484), (4, 5192039242), (8, 2596019621), (13, 1597550536), (26, 798775268), (52, 399387634), (104, 199693817)]