27921915

素因数分解:

$3^5\times 5^1\times 7^3\times {\mathrm{67}}^1$

素因数の和:108

約数の個数: 96

約数和(自身を含む): 59404800

約数和(自身を除く): 31482885

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 67, 81, 105, 135, 147, 189, 201, 243, 245, 315, 335, 343, 405, 441, 469, 567, 603, 735, 945, 1005, 1029, 1215, 1323, 1407, 1701, 1715, 1809, 2205, 2345, 2835, 3015, 3087, 3283, 3969, 4221, 5145, 5427, 6615, 7035, 8505, 9045, 9261, 9849, 11907, 12663, 15435, 16281, 16415, 19845, 21105, 22981, 27135, 27783, 29547, 37989, 46305, 49245, 59535, 63315, 68943, 81405, 83349, 88641, 113967, 114905, 138915, 147735, 189945, 206829, 265923, 344715, 416745, 443205, 569835, 620487, 797769, 1034145, 1329615, 1861461, 3102435, 3988845, 5584383, 9307305, 27921915]

約数ペア:

[(1, 27921915), (3, 9307305), (5, 5584383), (7, 3988845), (9, 3102435), (15, 1861461), (21, 1329615), (27, 1034145), (35, 797769), (45, 620487), (49, 569835), (63, 443205), (67, 416745), (81, 344715), (105, 265923), (135, 206829), (147, 189945), (189, 147735), (201, 138915), (243, 114905), (245, 113967), (315, 88641), (335, 83349), (343, 81405), (405, 68943), (441, 63315), (469, 59535), (567, 49245), (603, 46305), (735, 37989), (945, 29547), (1005, 27783), (1029, 27135), (1215, 22981), (1323, 21105), (1407, 19845), (1701, 16415), (1715, 16281), (1809, 15435), (2205, 12663), (2345, 11907), (2835, 9849), (3015, 9261), (3087, 9045), (3283, 8505), (3969, 7035), (4221, 6615), (5145, 5427)]