19744686

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4441}}^1$

素因数の和:4481

約数の個数: 48

約数和(自身を含む): 48506640

約数和(自身を除く): 28761954

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 38, 39, 57, 78, 114, 117, 171, 234, 247, 342, 494, 741, 1482, 2223, 4441, 4446, 8882, 13323, 26646, 39969, 57733, 79938, 84379, 115466, 168758, 173199, 253137, 346398, 506274, 519597, 759411, 1039194, 1096927, 1518822, 2193854, 3290781, 6581562, 9872343, 19744686]

約数ペア:

[(1, 19744686), (2, 9872343), (3, 6581562), (6, 3290781), (9, 2193854), (13, 1518822), (18, 1096927), (19, 1039194), (26, 759411), (38, 519597), (39, 506274), (57, 346398), (78, 253137), (114, 173199), (117, 168758), (171, 115466), (234, 84379), (247, 79938), (342, 57733), (494, 39969), (741, 26646), (1482, 13323), (2223, 8882), (4441, 4446)]