19986057

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1061}}^1$

素因数の和:1110

約数の個数: 48

約数和(自身を含む): 37110528

約数和(自身を除く): 17124471

約数列:

[1, 3, 7, 9, 13, 21, 23, 39, 63, 69, 91, 117, 161, 207, 273, 299, 483, 819, 897, 1061, 1449, 2093, 2691, 3183, 6279, 7427, 9549, 13793, 18837, 22281, 24403, 41379, 66843, 73209, 96551, 124137, 170821, 219627, 289653, 317239, 512463, 868959, 951717, 1537389, 2220673, 2855151, 6662019, 19986057]

約数ペア:

[(1, 19986057), (3, 6662019), (7, 2855151), (9, 2220673), (13, 1537389), (21, 951717), (23, 868959), (39, 512463), (63, 317239), (69, 289653), (91, 219627), (117, 170821), (161, 124137), (207, 96551), (273, 73209), (299, 66843), (483, 41379), (819, 24403), (897, 22281), (1061, 18837), (1449, 13793), (2093, 9549), (2691, 7427), (3183, 6279)]