21117304

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{203051}}^1$

素因数の和:203070

約数の個数: 16

約数和(自身を含む): 42640920

約数和(自身を除く): 21523616

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 203051, 406102, 812204, 1624408, 2639663, 5279326, 10558652, 21117304]

約数ペア:

[(1, 21117304), (2, 10558652), (4, 5279326), (8, 2639663), (13, 1624408), (26, 812204), (52, 406102), (104, 203051)]