20509359

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 30873024

約数和(自身を除く): 10363665

約数列:

[1, 3, 13, 37, 39, 61, 111, 183, 233, 481, 699, 793, 1443, 2257, 2379, 3029, 6771, 8621, 9087, 14213, 25863, 29341, 42639, 88023, 112073, 184769, 336219, 525881, 554307, 1577643, 6836453, 20509359]

約数ペア:

[(1, 20509359), (3, 6836453), (13, 1577643), (37, 554307), (39, 525881), (61, 336219), (111, 184769), (183, 112073), (233, 88023), (481, 42639), (699, 29341), (793, 25863), (1443, 14213), (2257, 9087), (2379, 8621), (3029, 6771)]