21144968

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{203317}}^1$

素因数の和:203336

約数の個数: 16

約数和(自身を含む): 42696780

約数和(自身を除く): 21551812

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 203317, 406634, 813268, 1626536, 2643121, 5286242, 10572484, 21144968]

約数ペア:

[(1, 21144968), (2, 10572484), (4, 5286242), (8, 2643121), (13, 1626536), (26, 813268), (52, 406634), (104, 203317)]