19470321

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:303

約数の個数: 48

約数和(自身を含む): 33203520

約数和(自身を除く): 13733199

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 117, 153, 169, 221, 251, 351, 459, 507, 663, 753, 1521, 1989, 2259, 2873, 3263, 4267, 4563, 5967, 6777, 8619, 9789, 12801, 25857, 29367, 38403, 42419, 55471, 77571, 88101, 115209, 127257, 166413, 381771, 499239, 721123, 1145313, 1497717, 2163369, 6490107, 19470321]

約数ペア:

[(1, 19470321), (3, 6490107), (9, 2163369), (13, 1497717), (17, 1145313), (27, 721123), (39, 499239), (51, 381771), (117, 166413), (153, 127257), (169, 115209), (221, 88101), (251, 77571), (351, 55471), (459, 42419), (507, 38403), (663, 29367), (753, 25857), (1521, 12801), (1989, 9789), (2259, 8619), (2873, 6777), (3263, 5967), (4267, 4563)]