1285489887

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{2081}}^1\times {\mathrm{18719}}^1$

素因数の和:20814

約数の個数: 16

約数和(自身を含む): 1870801920

約数和(自身を除く): 585312033

約数列:

[1, 3, 11, 33, 2081, 6243, 18719, 22891, 56157, 68673, 205909, 617727, 38954239, 116862717, 428496629, 1285489887]

約数ペア:

[(1, 1285489887), (3, 428496629), (11, 116862717), (33, 38954239), (2081, 617727), (6243, 205909), (18719, 68673), (22891, 56157)]