20836868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{6569}}^1$

素因数の和:6647

約数の個数: 24

約数和(自身を含む): 39919320

約数和(自身を除く): 19082452

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 244, 793, 1586, 3172, 6569, 13138, 26276, 85397, 170794, 341588, 400709, 801418, 1602836, 5209217, 10418434, 20836868]

約数ペア:

[(1, 20836868), (2, 10418434), (4, 5209217), (13, 1602836), (26, 801418), (52, 400709), (61, 341588), (122, 170794), (244, 85397), (793, 26276), (1586, 13138), (3172, 6569)]