18838197

素因数分解:

$3^3\times 7^2\times {\mathrm{29}}^1\times {\mathrm{491}}^1$

素因数の和:543

約数の個数: 48

約数和(自身を含む): 33652800

約数和(自身を除く): 14814603

約数列:

[1, 3, 7, 9, 21, 27, 29, 49, 63, 87, 147, 189, 203, 261, 441, 491, 609, 783, 1323, 1421, 1473, 1827, 3437, 4263, 4419, 5481, 10311, 12789, 13257, 14239, 24059, 30933, 38367, 42717, 72177, 92799, 99673, 128151, 216531, 299019, 384453, 649593, 697711, 897057, 2093133, 2691171, 6279399, 18838197]

約数ペア:

[(1, 18838197), (3, 6279399), (7, 2691171), (9, 2093133), (21, 897057), (27, 697711), (29, 649593), (49, 384453), (63, 299019), (87, 216531), (147, 128151), (189, 99673), (203, 92799), (261, 72177), (441, 42717), (491, 38367), (609, 30933), (783, 24059), (1323, 14239), (1421, 13257), (1473, 12789), (1827, 10311), (3437, 5481), (4263, 4419)]