17420265

素因数分解:

$3^4\times 5^1\times {\mathrm{43013}}^1$

素因数の和:43030

約数の個数: 20

約数和(自身を含む): 31228164

約数和(自身を除く): 13807899

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 43013, 129039, 215065, 387117, 645195, 1161351, 1935585, 3484053, 5806755, 17420265]

約数ペア:

[(1, 17420265), (3, 5806755), (5, 3484053), (9, 1935585), (15, 1161351), (27, 645195), (45, 387117), (81, 215065), (135, 129039), (405, 43013)]