15805209

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{761}}^1$

素因数の和:837

約数の個数: 32

約数和(自身を含む): 25749504

約数和(自身を除く): 9944295

約数列:

[1, 3, 7, 21, 23, 43, 69, 129, 161, 301, 483, 761, 903, 989, 2283, 2967, 5327, 6923, 15981, 17503, 20769, 32723, 52509, 98169, 122521, 229061, 367563, 687183, 752629, 2257887, 5268403, 15805209]

約数ペア:

[(1, 15805209), (3, 5268403), (7, 2257887), (21, 752629), (23, 687183), (43, 367563), (69, 229061), (129, 122521), (161, 98169), (301, 52509), (483, 32723), (761, 20769), (903, 17503), (989, 15981), (2283, 6923), (2967, 5327)]