18364563

素因数分解:

$3^4\times 7^3\times {\mathrm{661}}^1$

素因数の和:694

約数の個数: 40

約数和(自身を含む): 32040800

約数和(自身を除く): 13676237

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 343, 441, 567, 661, 1029, 1323, 1983, 3087, 3969, 4627, 5949, 9261, 13881, 17847, 27783, 32389, 41643, 53541, 97167, 124929, 226723, 291501, 374787, 680169, 874503, 2040507, 2623509, 6121521, 18364563]

約数ペア:

[(1, 18364563), (3, 6121521), (7, 2623509), (9, 2040507), (21, 874503), (27, 680169), (49, 374787), (63, 291501), (81, 226723), (147, 124929), (189, 97167), (343, 53541), (441, 41643), (567, 32389), (661, 27783), (1029, 17847), (1323, 13881), (1983, 9261), (3087, 5949), (3969, 4627)]