20990196

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{14221}}^1$

素因数の和:14272

約数の個数: 36

約数和(自身を含む): 54356484

約数和(自身を除く): 33366288

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 82, 123, 164, 246, 369, 492, 738, 1476, 14221, 28442, 42663, 56884, 85326, 127989, 170652, 255978, 511956, 583061, 1166122, 1749183, 2332244, 3498366, 5247549, 6996732, 10495098, 20990196]

約数ペア:

[(1, 20990196), (2, 10495098), (3, 6996732), (4, 5247549), (6, 3498366), (9, 2332244), (12, 1749183), (18, 1166122), (36, 583061), (41, 511956), (82, 255978), (123, 170652), (164, 127989), (246, 85326), (369, 56884), (492, 42663), (738, 28442), (1476, 14221)]