20643612

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{3637}}^1$

素因数の和:3698

約数の個数: 48

約数和(自身を含む): 53784192

約数和(自身を除く): 33140580

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 43, 44, 66, 86, 129, 132, 172, 258, 473, 516, 946, 1419, 1892, 2838, 3637, 5676, 7274, 10911, 14548, 21822, 40007, 43644, 80014, 120021, 156391, 160028, 240042, 312782, 469173, 480084, 625564, 938346, 1720301, 1876692, 3440602, 5160903, 6881204, 10321806, 20643612]

約数ペア:

[(1, 20643612), (2, 10321806), (3, 6881204), (4, 5160903), (6, 3440602), (11, 1876692), (12, 1720301), (22, 938346), (33, 625564), (43, 480084), (44, 469173), (66, 312782), (86, 240042), (129, 160028), (132, 156391), (172, 120021), (258, 80014), (473, 43644), (516, 40007), (946, 21822), (1419, 14548), (1892, 10911), (2838, 7274), (3637, 5676)]