19806445

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{5419}}^1$

素因数の和:5484

約数の個数: 16

約数和(自身を含む): 25755840

約数和(自身を除く): 5949395

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 5419, 27095, 92123, 233017, 460615, 1165085, 3961289, 19806445]

約数ペア:

[(1, 19806445), (5, 3961289), (17, 1165085), (43, 460615), (85, 233017), (215, 92123), (731, 27095), (3655, 5419)]