21655195

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{2381}}^1$

素因数の和:2510

約数の個数: 16

約数和(自身を含む): 27783648

約数和(自身を除く): 6128453

約数列:

[1, 5, 17, 85, 107, 535, 1819, 2381, 9095, 11905, 40477, 202385, 254767, 1273835, 4331039, 21655195]

約数ペア:

[(1, 21655195), (5, 4331039), (17, 1273835), (85, 254767), (107, 202385), (535, 40477), (1819, 11905), (2381, 9095)]