12958281

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2897}}^1$

素因数の和:2981

約数の個数: 24

約数和(自身を含む): 21700224

約数和(自身を除く): 8741943

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 2897, 4473, 8691, 20279, 26073, 60837, 182511, 205687, 617061, 1439809, 1851183, 4319427, 12958281]

約数ペア:

[(1, 12958281), (3, 4319427), (7, 1851183), (9, 1439809), (21, 617061), (63, 205687), (71, 182511), (213, 60837), (497, 26073), (639, 20279), (1491, 8691), (2897, 4473)]