20943745

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{4649}}^1$

素因数の和:4724

約数の個数: 16

約数和(自身を含む): 27118800

約数和(自身を除く): 6175055

約数列:

[1, 5, 17, 53, 85, 265, 901, 4505, 4649, 23245, 79033, 246397, 395165, 1231985, 4188749, 20943745]

約数ペア:

[(1, 20943745), (5, 4188749), (17, 1231985), (53, 395165), (85, 246397), (265, 79033), (901, 23245), (4505, 4649)]