21276918

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{10103}}^1$

素因数の和:10130

約数の個数: 40

約数和(自身を含む): 51348528

約数和(自身を除く): 30071610

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 351, 702, 1053, 2106, 10103, 20206, 30309, 60618, 90927, 131339, 181854, 262678, 272781, 394017, 545562, 788034, 818343, 1182051, 1636686, 2364102, 3546153, 7092306, 10638459, 21276918]

約数ペア:

[(1, 21276918), (2, 10638459), (3, 7092306), (6, 3546153), (9, 2364102), (13, 1636686), (18, 1182051), (26, 818343), (27, 788034), (39, 545562), (54, 394017), (78, 272781), (81, 262678), (117, 181854), (162, 131339), (234, 90927), (351, 60618), (702, 30309), (1053, 20206), (2106, 10103)]