20646536

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1277}}^1$

素因数の和:1373

約数の個数: 32

約数和(自身を含む): 40487040

約数和(自身を除く): 19840504

約数列:

[1, 2, 4, 8, 43, 47, 86, 94, 172, 188, 344, 376, 1277, 2021, 2554, 4042, 5108, 8084, 10216, 16168, 54911, 60019, 109822, 120038, 219644, 240076, 439288, 480152, 2580817, 5161634, 10323268, 20646536]

約数ペア:

[(1, 20646536), (2, 10323268), (4, 5161634), (8, 2580817), (43, 480152), (47, 439288), (86, 240076), (94, 219644), (172, 120038), (188, 109822), (344, 60019), (376, 54911), (1277, 16168), (2021, 10216), (2554, 8084), (4042, 5108)]