21117772

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{17657}}^1$

素因数の和:17697

約数の個数: 24

約数和(自身を含む): 41531616

約数和(自身を除く): 20413844

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 92, 299, 598, 1196, 17657, 35314, 70628, 229541, 406111, 459082, 812222, 918164, 1624444, 5279443, 10558886, 21117772]

約数ペア:

[(1, 21117772), (2, 10558886), (4, 5279443), (13, 1624444), (23, 918164), (26, 812222), (46, 459082), (52, 406111), (92, 229541), (299, 70628), (598, 35314), (1196, 17657)]