21794265

素因数分解:

$3^4\times 5^1\times {\mathrm{53813}}^1$

素因数の和:53830

約数の個数: 20

約数和(自身を含む): 39068964

約数和(自身を除く): 17274699

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 53813, 161439, 269065, 484317, 807195, 1452951, 2421585, 4358853, 7264755, 21794265]

約数ペア:

[(1, 21794265), (3, 7264755), (5, 4358853), (9, 2421585), (15, 1452951), (27, 807195), (45, 484317), (81, 269065), (135, 161439), (405, 53813)]