18137105

素因数分解:

$5^1\times 7^2\times {\mathrm{181}}^1\times {\mathrm{409}}^1$

素因数の和:609

約数の個数: 24

約数和(自身を含む): 25520040

約数和(自身を除く): 7382935

約数列:

[1, 5, 7, 35, 49, 181, 245, 409, 905, 1267, 2045, 2863, 6335, 8869, 14315, 20041, 44345, 74029, 100205, 370145, 518203, 2591015, 3627421, 18137105]

約数ペア:

[(1, 18137105), (5, 3627421), (7, 2591015), (35, 518203), (49, 370145), (181, 100205), (245, 74029), (409, 44345), (905, 20041), (1267, 14315), (2045, 8869), (2863, 6335)]