20494518

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{587}}^1$

素因数の和:649

約数の個数: 48

約数和(自身を含む): 46823616

約数和(自身を除く): 26329098

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 138, 253, 506, 529, 587, 759, 1058, 1174, 1518, 1587, 1761, 3174, 3522, 5819, 6457, 11638, 12914, 13501, 17457, 19371, 27002, 34914, 38742, 40503, 81006, 148511, 297022, 310523, 445533, 621046, 891066, 931569, 1863138, 3415753, 6831506, 10247259, 20494518]

約数ペア:

[(1, 20494518), (2, 10247259), (3, 6831506), (6, 3415753), (11, 1863138), (22, 931569), (23, 891066), (33, 621046), (46, 445533), (66, 310523), (69, 297022), (138, 148511), (253, 81006), (506, 40503), (529, 38742), (587, 34914), (759, 27002), (1058, 19371), (1174, 17457), (1518, 13501), (1587, 12914), (1761, 11638), (3174, 6457), (3522, 5819)]