12780027

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5749}}^1$

素因数の和:5787

約数の個数: 24

約数和(自身を含む): 20930000

約数和(自身を除く): 8149973

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 5749, 17247, 51741, 74737, 109231, 224211, 327693, 672633, 983079, 1420003, 4260009, 12780027]

約数ペア:

[(1, 12780027), (3, 4260009), (9, 1420003), (13, 983079), (19, 672633), (39, 327693), (57, 224211), (117, 109231), (171, 74737), (247, 51741), (741, 17247), (2223, 5749)]