20902167

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 36036000

約数和(自身を除く): 15133833

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 109, 117, 143, 149, 327, 429, 447, 981, 1199, 1287, 1341, 1417, 1639, 1937, 3597, 4251, 4917, 5811, 10791, 12753, 14751, 15587, 16241, 17433, 21307, 46761, 48723, 63921, 140283, 146169, 178651, 191763, 211133, 535953, 633399, 1607859, 1900197, 2322463, 6967389, 20902167]

約数ペア:

[(1, 20902167), (3, 6967389), (9, 2322463), (11, 1900197), (13, 1607859), (33, 633399), (39, 535953), (99, 211133), (109, 191763), (117, 178651), (143, 146169), (149, 140283), (327, 63921), (429, 48723), (447, 46761), (981, 21307), (1199, 17433), (1287, 16241), (1341, 15587), (1417, 14751), (1639, 12753), (1937, 10791), (3597, 5811), (4251, 4917)]