21174426

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:201

約数の個数: 128

約数和(自身を含む): 60211200

約数和(自身を除く): 39036774

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 31, 39, 42, 54, 62, 63, 78, 91, 93, 117, 126, 139, 182, 186, 189, 217, 234, 273, 278, 279, 351, 378, 403, 417, 434, 546, 558, 651, 702, 806, 819, 834, 837, 973, 1209, 1251, 1302, 1638, 1674, 1807, 1946, 1953, 2418, 2457, 2502, 2821, 2919, 3614, 3627, 3753, 3906, 4309, 4914, 5421, 5642, 5838, 5859, 7254, 7506, 8463, 8618, 8757, 10842, 10881, 11718, 12649, 12927, 16263, 16926, 17514, 21762, 25298, 25389, 25854, 26271, 30163, 32526, 37947, 38781, 48789, 50778, 52542, 56017, 60326, 75894, 76167, 77562, 90489, 97578, 112034, 113841, 116343, 152334, 168051, 180978, 227682, 232686, 271467, 336102, 341523, 392119, 504153, 542934, 683046, 784238, 814401, 1008306, 1176357, 1512459, 1628802, 2352714, 3024918, 3529071, 7058142, 10587213, 21174426]

約数ペア:

[(1, 21174426), (2, 10587213), (3, 7058142), (6, 3529071), (7, 3024918), (9, 2352714), (13, 1628802), (14, 1512459), (18, 1176357), (21, 1008306), (26, 814401), (27, 784238), (31, 683046), (39, 542934), (42, 504153), (54, 392119), (62, 341523), (63, 336102), (78, 271467), (91, 232686), (93, 227682), (117, 180978), (126, 168051), (139, 152334), (182, 116343), (186, 113841), (189, 112034), (217, 97578), (234, 90489), (273, 77562), (278, 76167), (279, 75894), (351, 60326), (378, 56017), (403, 52542), (417, 50778), (434, 48789), (546, 38781), (558, 37947), (651, 32526), (702, 30163), (806, 26271), (819, 25854), (834, 25389), (837, 25298), (973, 21762), (1209, 17514), (1251, 16926), (1302, 16263), (1638, 12927), (1674, 12649), (1807, 11718), (1946, 10881), (1953, 10842), (2418, 8757), (2457, 8618), (2502, 8463), (2821, 7506), (2919, 7254), (3614, 5859), (3627, 5838), (3753, 5642), (3906, 5421), (4309, 4914)]