13812981

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2663}}^1$

素因数の和:2705

約数の個数: 32

約数和(自身を含む): 23869440

約数和(自身を除く): 10056459

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 2663, 5187, 7989, 18641, 34619, 50597, 55923, 103857, 151791, 242333, 354179, 657761, 726999, 1062537, 1973283, 4604327, 13812981]

約数ペア:

[(1, 13812981), (3, 4604327), (7, 1973283), (13, 1062537), (19, 726999), (21, 657761), (39, 354179), (57, 242333), (91, 151791), (133, 103857), (247, 55923), (273, 50597), (399, 34619), (741, 18641), (1729, 7989), (2663, 5187)]