204815541

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1999}}^1$

素因数の和:2074

約数の個数: 48

約数和(自身を含む): 344736000

約数和(自身を除く): 139920459

約数列:

[1, 3, 7, 17, 21, 41, 49, 51, 119, 123, 147, 287, 357, 697, 833, 861, 1999, 2009, 2091, 2499, 4879, 5997, 6027, 13993, 14637, 33983, 34153, 41979, 81959, 97951, 101949, 102459, 237881, 245877, 293853, 573713, 713643, 1393303, 1665167, 1721139, 4015991, 4179909, 4995501, 9753121, 12047973, 29259363, 68271847, 204815541]

約数ペア:

[(1, 204815541), (3, 68271847), (7, 29259363), (17, 12047973), (21, 9753121), (41, 4995501), (49, 4179909), (51, 4015991), (119, 1721139), (123, 1665167), (147, 1393303), (287, 713643), (357, 573713), (697, 293853), (833, 245877), (861, 237881), (1999, 102459), (2009, 101949), (2091, 97951), (2499, 81959), (4879, 41979), (5997, 34153), (6027, 33983), (13993, 14637)]