21186672

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1787}}^1$

素因数の和:1830

約数の個数: 80

約数和(自身を含む): 62079360

約数和(自身を除く): 40892688

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 19, 24, 26, 38, 39, 48, 52, 57, 76, 78, 104, 114, 152, 156, 208, 228, 247, 304, 312, 456, 494, 624, 741, 912, 988, 1482, 1787, 1976, 2964, 3574, 3952, 5361, 5928, 7148, 10722, 11856, 14296, 21444, 23231, 28592, 33953, 42888, 46462, 67906, 69693, 85776, 92924, 101859, 135812, 139386, 185848, 203718, 271624, 278772, 371696, 407436, 441389, 543248, 557544, 814872, 882778, 1115088, 1324167, 1629744, 1765556, 2648334, 3531112, 5296668, 7062224, 10593336, 21186672]

約数ペア:

[(1, 21186672), (2, 10593336), (3, 7062224), (4, 5296668), (6, 3531112), (8, 2648334), (12, 1765556), (13, 1629744), (16, 1324167), (19, 1115088), (24, 882778), (26, 814872), (38, 557544), (39, 543248), (48, 441389), (52, 407436), (57, 371696), (76, 278772), (78, 271624), (104, 203718), (114, 185848), (152, 139386), (156, 135812), (208, 101859), (228, 92924), (247, 85776), (304, 69693), (312, 67906), (456, 46462), (494, 42888), (624, 33953), (741, 28592), (912, 23231), (988, 21444), (1482, 14296), (1787, 11856), (1976, 10722), (2964, 7148), (3574, 5928), (3952, 5361)]