20887818

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{3089}}^1$

素因数の和:3131

約数の個数: 48

約数和(自身を含む): 50725440

約数和(自身を除く): 29837622

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 49, 69, 98, 138, 147, 161, 294, 322, 483, 966, 1127, 2254, 3089, 3381, 6178, 6762, 9267, 18534, 21623, 43246, 64869, 71047, 129738, 142094, 151361, 213141, 302722, 426282, 454083, 497329, 908166, 994658, 1491987, 2983974, 3481303, 6962606, 10443909, 20887818]

約数ペア:

[(1, 20887818), (2, 10443909), (3, 6962606), (6, 3481303), (7, 2983974), (14, 1491987), (21, 994658), (23, 908166), (42, 497329), (46, 454083), (49, 426282), (69, 302722), (98, 213141), (138, 151361), (147, 142094), (161, 129738), (294, 71047), (322, 64869), (483, 43246), (966, 21623), (1127, 18534), (2254, 9267), (3089, 6762), (3381, 6178)]