13121739

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{617}}^1$

素因数の和:779

約数の個数: 24

約数和(自身を含む): 20245680

約数和(自身を除く): 7123941

約数列:

[1, 3, 9, 17, 51, 139, 153, 417, 617, 1251, 1851, 2363, 5553, 7089, 10489, 21267, 31467, 85763, 94401, 257289, 771867, 1457971, 4373913, 13121739]

約数ペア:

[(1, 13121739), (3, 4373913), (9, 1457971), (17, 771867), (51, 257289), (139, 94401), (153, 85763), (417, 31467), (617, 21267), (1251, 10489), (1851, 7089), (2363, 5553)]