12821955

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 21305856

約数和(自身を除く): 8483901

約数列:

[1, 3, 5, 15, 43, 103, 129, 193, 215, 309, 515, 579, 645, 965, 1545, 2895, 4429, 8299, 13287, 19879, 22145, 24897, 41495, 59637, 66435, 99395, 124485, 298185, 854797, 2564391, 4273985, 12821955]

約数ペア:

[(1, 12821955), (3, 4273985), (5, 2564391), (15, 854797), (43, 298185), (103, 124485), (129, 99395), (193, 66435), (215, 59637), (309, 41495), (515, 24897), (579, 22145), (645, 19879), (965, 13287), (1545, 8299), (2895, 4429)]