19618747841

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{408971}}^1$

素因数の和:409085

約数の個数: 24

約数和(自身を含む): 25176316320

約数和(自身を除く): 5557568479

約数列:

[1, 7, 11, 49, 77, 89, 539, 623, 979, 4361, 6853, 47971, 408971, 2862797, 4498681, 20039579, 31490767, 36398419, 220435369, 254788933, 400382609, 1783522531, 2802678263, 19618747841]

約数ペア:

[(1, 19618747841), (7, 2802678263), (11, 1783522531), (49, 400382609), (77, 254788933), (89, 220435369), (539, 36398419), (623, 31490767), (979, 20039579), (4361, 4498681), (6853, 2862797), (47971, 408971)]