19707642

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{263}}^1$

素因数の和:475

約数の個数: 48

約数和(自身を含む): 44972928

約数和(自身を除く): 25265286

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 181, 207, 263, 362, 414, 526, 543, 789, 1086, 1578, 1629, 2367, 3258, 4163, 4734, 6049, 8326, 12098, 12489, 18147, 24978, 36294, 37467, 47603, 54441, 74934, 95206, 108882, 142809, 285618, 428427, 856854, 1094869, 2189738, 3284607, 6569214, 9853821, 19707642]

約数ペア:

[(1, 19707642), (2, 9853821), (3, 6569214), (6, 3284607), (9, 2189738), (18, 1094869), (23, 856854), (46, 428427), (69, 285618), (138, 142809), (181, 108882), (207, 95206), (263, 74934), (362, 54441), (414, 47603), (526, 37467), (543, 36294), (789, 24978), (1086, 18147), (1578, 12489), (1629, 12098), (2367, 8326), (3258, 6049), (4163, 4734)]