20247695

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{8419}}^1$

素因数の和:8474

約数の個数: 16

約数和(自身を含む): 26876640

約数和(自身を除く): 6628945

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 8419, 42095, 109447, 311503, 547235, 1557515, 4049539, 20247695]

約数ペア:

[(1, 20247695), (5, 4049539), (13, 1557515), (37, 547235), (65, 311503), (185, 109447), (481, 42095), (2405, 8419)]