20588615

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{131}}^1$

素因数の和:239

約数の個数: 24

約数和(自身を含む): 26986608

約数和(自身を除く): 6397993

約数列:

[1, 5, 17, 43, 85, 131, 215, 655, 731, 1849, 2227, 3655, 5633, 9245, 11135, 28165, 31433, 95761, 157165, 242219, 478805, 1211095, 4117723, 20588615]

約数ペア:

[(1, 20588615), (5, 4117723), (17, 1211095), (43, 478805), (85, 242219), (131, 157165), (215, 95761), (655, 31433), (731, 28165), (1849, 11135), (2227, 9245), (3655, 5633)]