20885607

素因数分解:

$3^5\times {\mathrm{61}}^1\times {\mathrm{1409}}^1$

素因数の和:1485

約数の個数: 24

約数和(自身を含む): 31820880

約数和(自身を除く): 10935273

約数列:

[1, 3, 9, 27, 61, 81, 183, 243, 549, 1409, 1647, 4227, 4941, 12681, 14823, 38043, 85949, 114129, 257847, 342387, 773541, 2320623, 6961869, 20885607]

約数ペア:

[(1, 20885607), (3, 6961869), (9, 2320623), (27, 773541), (61, 342387), (81, 257847), (183, 114129), (243, 85949), (549, 38043), (1409, 14823), (1647, 12681), (4227, 4941)]