12728157

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 19555200

約数和(自身を除く): 6827043

約数列:

[1, 3, 13, 19, 39, 57, 89, 193, 247, 267, 579, 741, 1157, 1691, 2509, 3471, 3667, 5073, 7527, 11001, 17177, 21983, 47671, 51531, 65949, 143013, 223301, 326363, 669903, 979089, 4242719, 12728157]

約数ペア:

[(1, 12728157), (3, 4242719), (13, 979089), (19, 669903), (39, 326363), (57, 223301), (89, 143013), (193, 65949), (247, 51531), (267, 47671), (579, 21983), (741, 17177), (1157, 11001), (1691, 7527), (2509, 5073), (3471, 3667)]