18416151

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 31135104

約数和(自身を除く): 12718953

約数列:

[1, 3, 9, 13, 17, 39, 47, 51, 117, 141, 153, 197, 221, 423, 591, 611, 663, 799, 1773, 1833, 1989, 2397, 2561, 3349, 5499, 7191, 7683, 9259, 10047, 10387, 23049, 27777, 30141, 31161, 43537, 83331, 93483, 120367, 130611, 157403, 361101, 391833, 472209, 1083303, 1416627, 2046239, 6138717, 18416151]

約数ペア:

[(1, 18416151), (3, 6138717), (9, 2046239), (13, 1416627), (17, 1083303), (39, 472209), (47, 391833), (51, 361101), (117, 157403), (141, 130611), (153, 120367), (197, 93483), (221, 83331), (423, 43537), (591, 31161), (611, 30141), (663, 27777), (799, 23049), (1773, 10387), (1833, 10047), (1989, 9259), (2397, 7683), (2561, 7191), (3349, 5499)]