21711755

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{8147}}^1$

素因数の和:8206

約数の個数: 16

約数和(自身を含む): 28746144

約数和(自身を除く): 7034389

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 8147, 40735, 105911, 334027, 529555, 1670135, 4342351, 21711755]

約数ペア:

[(1, 21711755), (5, 4342351), (13, 1670135), (41, 529555), (65, 334027), (205, 105911), (533, 40735), (2665, 8147)]