21000359576

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{607}}^1\times {\mathrm{26861}}^1$

素因数の和:27504

約数の個数: 64

約数和(自身を含む): 47036436480

約数和(自身を除く): 26036076904

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 161, 184, 322, 607, 644, 1214, 1288, 2428, 4249, 4856, 8498, 13961, 16996, 26861, 27922, 33992, 53722, 55844, 97727, 107444, 111688, 188027, 195454, 214888, 376054, 390908, 617803, 752108, 781816, 1235606, 1504216, 2471212, 4324621, 4942424, 8649242, 16304627, 17298484, 32609254, 34596968, 65218508, 114132389, 130437016, 228264778, 375006421, 456529556, 750012842, 913059112, 1500025684, 2625044947, 3000051368, 5250089894, 10500179788, 21000359576]

約数ペア:

[(1, 21000359576), (2, 10500179788), (4, 5250089894), (7, 3000051368), (8, 2625044947), (14, 1500025684), (23, 913059112), (28, 750012842), (46, 456529556), (56, 375006421), (92, 228264778), (161, 130437016), (184, 114132389), (322, 65218508), (607, 34596968), (644, 32609254), (1214, 17298484), (1288, 16304627), (2428, 8649242), (4249, 4942424), (4856, 4324621), (8498, 2471212), (13961, 1504216), (16996, 1235606), (26861, 781816), (27922, 752108), (33992, 617803), (53722, 390908), (55844, 376054), (97727, 214888), (107444, 195454), (111688, 188027)]