20887398

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1709}}^1$

素因数の和:1821

約数の個数: 48

約数和(自身を含む): 52284960

約数和(自身を除く): 31397562

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 97, 126, 194, 291, 582, 679, 873, 1358, 1709, 1746, 2037, 3418, 4074, 5127, 6111, 10254, 11963, 12222, 15381, 23926, 30762, 35889, 71778, 107667, 165773, 215334, 331546, 497319, 994638, 1160411, 1491957, 2320822, 2983914, 3481233, 6962466, 10443699, 20887398]

約数ペア:

[(1, 20887398), (2, 10443699), (3, 6962466), (6, 3481233), (7, 2983914), (9, 2320822), (14, 1491957), (18, 1160411), (21, 994638), (42, 497319), (63, 331546), (97, 215334), (126, 165773), (194, 107667), (291, 71778), (582, 35889), (679, 30762), (873, 23926), (1358, 15381), (1709, 12222), (1746, 11963), (2037, 10254), (3418, 6111), (4074, 5127)]