81211448451

素因数分解:

$3^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{193}}^1\times {\mathrm{21851}}^1$

素因数の和:22192

約数の個数: 48

約数和(自身を含む): 127585611648

約数和(自身を除く): 46374163197

約数列:

[1, 3, 7, 21, 49, 131, 147, 193, 393, 579, 917, 1351, 2751, 4053, 6419, 9457, 19257, 21851, 25283, 28371, 65553, 75849, 152957, 176981, 458871, 530943, 1070699, 1238867, 2862481, 3212097, 3716601, 4217243, 8587443, 12651729, 20037367, 29520701, 60112101, 88562103, 140261569, 206644907, 420784707, 552458833, 619934721, 1657376499, 3867211831, 11601635493, 27070482817, 81211448451]

約数ペア:

[(1, 81211448451), (3, 27070482817), (7, 11601635493), (21, 3867211831), (49, 1657376499), (131, 619934721), (147, 552458833), (193, 420784707), (393, 206644907), (579, 140261569), (917, 88562103), (1351, 60112101), (2751, 29520701), (4053, 20037367), (6419, 12651729), (9457, 8587443), (19257, 4217243), (21851, 3716601), (25283, 3212097), (28371, 2862481), (65553, 1238867), (75849, 1070699), (152957, 530943), (176981, 458871)]