18997494

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 42301440

約数和(自身を除く): 23303946

約数列:

[1, 2, 3, 6, 23, 29, 46, 47, 58, 69, 87, 94, 101, 138, 141, 174, 202, 282, 303, 606, 667, 1081, 1334, 1363, 2001, 2162, 2323, 2726, 2929, 3243, 4002, 4089, 4646, 4747, 5858, 6486, 6969, 8178, 8787, 9494, 13938, 14241, 17574, 28482, 31349, 62698, 67367, 94047, 109181, 134734, 137663, 188094, 202101, 218362, 275326, 327543, 404202, 412989, 655086, 825978, 3166249, 6332498, 9498747, 18997494]

約数ペア:

[(1, 18997494), (2, 9498747), (3, 6332498), (6, 3166249), (23, 825978), (29, 655086), (46, 412989), (47, 404202), (58, 327543), (69, 275326), (87, 218362), (94, 202101), (101, 188094), (138, 137663), (141, 134734), (174, 109181), (202, 94047), (282, 67367), (303, 62698), (606, 31349), (667, 28482), (1081, 17574), (1334, 14241), (1363, 13938), (2001, 9494), (2162, 8787), (2323, 8178), (2726, 6969), (2929, 6486), (3243, 5858), (4002, 4747), (4089, 4646)]