11945781

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{479}}^1$

素因数の和:665

約数の個数: 24

約数和(自身を含む): 18420480

約数和(自身を除く): 6474699

約数列:

[1, 3, 9, 17, 51, 153, 163, 479, 489, 1437, 1467, 2771, 4311, 8143, 8313, 24429, 24939, 73287, 78077, 234231, 702693, 1327309, 3981927, 11945781]

約数ペア:

[(1, 11945781), (3, 3981927), (9, 1327309), (17, 702693), (51, 234231), (153, 78077), (163, 73287), (479, 24939), (489, 24429), (1437, 8313), (1467, 8143), (2771, 4311)]