15564717

素因数分解:

$3^4\times 7^1\times {\mathrm{97}}^1\times {\mathrm{283}}^1$

素因数の和:399

約数の個数: 40

約数和(自身を含む): 26941376

約数和(自身を除く): 11376659

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 97, 189, 283, 291, 567, 679, 849, 873, 1981, 2037, 2547, 2619, 5943, 6111, 7641, 7857, 17829, 18333, 22923, 27451, 53487, 54999, 82353, 160461, 192157, 247059, 576471, 741177, 1729413, 2223531, 5188239, 15564717]

約数ペア:

[(1, 15564717), (3, 5188239), (7, 2223531), (9, 1729413), (21, 741177), (27, 576471), (63, 247059), (81, 192157), (97, 160461), (189, 82353), (283, 54999), (291, 53487), (567, 27451), (679, 22923), (849, 18333), (873, 17829), (1981, 7857), (2037, 7641), (2547, 6111), (2619, 5943)]