19788552

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:176

約数の個数: 144

約数和(自身を含む): 64022400

約数和(自身を除く): 44233848

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 71, 72, 79, 84, 98, 126, 142, 147, 158, 168, 196, 213, 237, 252, 284, 294, 316, 392, 426, 441, 474, 497, 504, 553, 568, 588, 632, 639, 711, 852, 882, 948, 994, 1106, 1176, 1278, 1422, 1491, 1659, 1704, 1764, 1896, 1988, 2212, 2556, 2844, 2982, 3318, 3479, 3528, 3871, 3976, 4424, 4473, 4977, 5112, 5609, 5688, 5964, 6636, 6958, 7742, 8946, 9954, 10437, 11218, 11613, 11928, 13272, 13916, 15484, 16827, 17892, 19908, 20874, 22436, 23226, 27832, 30968, 31311, 33654, 34839, 35784, 39263, 39816, 41748, 44872, 46452, 50481, 62622, 67308, 69678, 78526, 83496, 92904, 100962, 117789, 125244, 134616, 139356, 157052, 201924, 235578, 250488, 274841, 278712, 314104, 353367, 403848, 471156, 549682, 706734, 824523, 942312, 1099364, 1413468, 1649046, 2198728, 2473569, 2826936, 3298092, 4947138, 6596184, 9894276, 19788552]

約数ペア:

[(1, 19788552), (2, 9894276), (3, 6596184), (4, 4947138), (6, 3298092), (7, 2826936), (8, 2473569), (9, 2198728), (12, 1649046), (14, 1413468), (18, 1099364), (21, 942312), (24, 824523), (28, 706734), (36, 549682), (42, 471156), (49, 403848), (56, 353367), (63, 314104), (71, 278712), (72, 274841), (79, 250488), (84, 235578), (98, 201924), (126, 157052), (142, 139356), (147, 134616), (158, 125244), (168, 117789), (196, 100962), (213, 92904), (237, 83496), (252, 78526), (284, 69678), (294, 67308), (316, 62622), (392, 50481), (426, 46452), (441, 44872), (474, 41748), (497, 39816), (504, 39263), (553, 35784), (568, 34839), (588, 33654), (632, 31311), (639, 30968), (711, 27832), (852, 23226), (882, 22436), (948, 20874), (994, 19908), (1106, 17892), (1176, 16827), (1278, 15484), (1422, 13916), (1491, 13272), (1659, 11928), (1704, 11613), (1764, 11218), (1896, 10437), (1988, 9954), (2212, 8946), (2556, 7742), (2844, 6958), (2982, 6636), (3318, 5964), (3479, 5688), (3528, 5609), (3871, 5112), (3976, 4977), (4424, 4473)]