21246615

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36319}}^1$

素因数の和:36343

約数の個数: 24

約数和(自身を含む): 39661440

約数和(自身を除く): 18414825

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 36319, 108957, 181595, 326871, 472147, 544785, 1416441, 1634355, 2360735, 4249323, 7082205, 21246615]

約数ペア:

[(1, 21246615), (3, 7082205), (5, 4249323), (9, 2360735), (13, 1634355), (15, 1416441), (39, 544785), (45, 472147), (65, 326871), (117, 181595), (195, 108957), (585, 36319)]