21031296496

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{337}}^1\times {\mathrm{449}}^1$

素因数の和:891

約数の個数: 160

約数和(自身を含む): 50244105600

約数和(自身を除く): 29212809104

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 73, 112, 119, 136, 146, 238, 272, 292, 337, 449, 476, 511, 584, 674, 898, 952, 1022, 1168, 1241, 1348, 1796, 1904, 2044, 2359, 2482, 2696, 3143, 3592, 4088, 4718, 4964, 5392, 5729, 6286, 7184, 7633, 8176, 8687, 9436, 9928, 11458, 12572, 15266, 17374, 18872, 19856, 22916, 24601, 25144, 30532, 32777, 34748, 37744, 40103, 45832, 49202, 50288, 53431, 61064, 65554, 69496, 80206, 91664, 98404, 106862, 122128, 131108, 138992, 151313, 160412, 172207, 196808, 213724, 229439, 262216, 302626, 320824, 344414, 393616, 418217, 427448, 458878, 524432, 557209, 605252, 641648, 688828, 836434, 854896, 917756, 1059191, 1114418, 1210504, 1377656, 1672868, 1835512, 2118382, 2228836, 2421008, 2572321, 2755312, 2927519, 3345736, 3671024, 3900463, 4236764, 4457672, 5144642, 5855038, 6691472, 7800926, 8473528, 8915344, 10289284, 11045849, 11710076, 15601852, 16947056, 18006247, 20578568, 22091698, 23420152, 31203704, 36012494, 41157136, 44183396, 46840304, 62407408, 72024988, 77320943, 88366792, 144049976, 154641886, 176733584, 187779433, 288099952, 309283772, 375558866, 618567544, 751117732, 1237135088, 1314456031, 1502235464, 2628912062, 3004470928, 5257824124, 10515648248, 21031296496]

約数ペア:

[(1, 21031296496), (2, 10515648248), (4, 5257824124), (7, 3004470928), (8, 2628912062), (14, 1502235464), (16, 1314456031), (17, 1237135088), (28, 751117732), (34, 618567544), (56, 375558866), (68, 309283772), (73, 288099952), (112, 187779433), (119, 176733584), (136, 154641886), (146, 144049976), (238, 88366792), (272, 77320943), (292, 72024988), (337, 62407408), (449, 46840304), (476, 44183396), (511, 41157136), (584, 36012494), (674, 31203704), (898, 23420152), (952, 22091698), (1022, 20578568), (1168, 18006247), (1241, 16947056), (1348, 15601852), (1796, 11710076), (1904, 11045849), (2044, 10289284), (2359, 8915344), (2482, 8473528), (2696, 7800926), (3143, 6691472), (3592, 5855038), (4088, 5144642), (4718, 4457672), (4964, 4236764), (5392, 3900463), (5729, 3671024), (6286, 3345736), (7184, 2927519), (7633, 2755312), (8176, 2572321), (8687, 2421008), (9436, 2228836), (9928, 2118382), (11458, 1835512), (12572, 1672868), (15266, 1377656), (17374, 1210504), (18872, 1114418), (19856, 1059191), (22916, 917756), (24601, 854896), (25144, 836434), (30532, 688828), (32777, 641648), (34748, 605252), (37744, 557209), (40103, 524432), (45832, 458878), (49202, 427448), (50288, 418217), (53431, 393616), (61064, 344414), (65554, 320824), (69496, 302626), (80206, 262216), (91664, 229439), (98404, 213724), (106862, 196808), (122128, 172207), (131108, 160412), (138992, 151313)]