20187609939

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{61001}}^1$

素因数の和:61137

約数の個数: 64

約数和(自身を含む): 36542638080

約数和(自身を除く): 16355028141

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 103, 119, 153, 189, 309, 357, 459, 721, 927, 1071, 1751, 2163, 2781, 3213, 5253, 6489, 12257, 15759, 19467, 36771, 47277, 61001, 110313, 183003, 330939, 427007, 549009, 1037017, 1281021, 1647027, 3111051, 3843063, 6283103, 7259119, 9333153, 11529189, 18849309, 21777357, 27999459, 43981721, 56547927, 65332071, 106812751, 131945163, 169643781, 195996213, 320438253, 395835489, 747689257, 961314759, 1187506467, 2243067771, 2883944277, 6729203313, 20187609939]

約数ペア:

[(1, 20187609939), (3, 6729203313), (7, 2883944277), (9, 2243067771), (17, 1187506467), (21, 961314759), (27, 747689257), (51, 395835489), (63, 320438253), (103, 195996213), (119, 169643781), (153, 131945163), (189, 106812751), (309, 65332071), (357, 56547927), (459, 43981721), (721, 27999459), (927, 21777357), (1071, 18849309), (1751, 11529189), (2163, 9333153), (2781, 7259119), (3213, 6283103), (5253, 3843063), (6489, 3111051), (12257, 1647027), (15759, 1281021), (19467, 1037017), (36771, 549009), (47277, 427007), (61001, 330939), (110313, 183003)]