20152251

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^2\times {\mathrm{173}}^1$

素因数の和:272

約数の個数: 36

約数和(自身を含む): 34255728

約数和(自身を除く): 14103477

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 173, 301, 387, 519, 903, 1211, 1557, 1849, 2709, 3633, 5547, 7439, 10899, 12943, 16641, 22317, 38829, 52073, 66951, 116487, 156219, 319877, 468657, 959631, 2239139, 2878893, 6717417, 20152251]

約数ペア:

[(1, 20152251), (3, 6717417), (7, 2878893), (9, 2239139), (21, 959631), (43, 468657), (63, 319877), (129, 156219), (173, 116487), (301, 66951), (387, 52073), (519, 38829), (903, 22317), (1211, 16641), (1557, 12943), (1849, 10899), (2709, 7439), (3633, 5547)]