18378749669

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^2\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 22232280576

約数和(自身を除く): 3853530907

約数列:

[1, 7, 43, 47, 131, 211, 301, 329, 917, 1477, 2021, 2209, 5633, 6157, 9073, 9917, 14147, 15463, 27641, 39431, 43099, 63511, 69419, 94987, 193487, 264751, 289379, 426431, 466099, 664909, 1188563, 1299127, 1853257, 2025653, 2985017, 3262693, 8319941, 9093889, 12443297, 20042257, 55862461, 61058969, 87103079, 140295799, 391037227, 427412783, 2625535667, 18378749669]

約数ペア:

[(1, 18378749669), (7, 2625535667), (43, 427412783), (47, 391037227), (131, 140295799), (211, 87103079), (301, 61058969), (329, 55862461), (917, 20042257), (1477, 12443297), (2021, 9093889), (2209, 8319941), (5633, 3262693), (6157, 2985017), (9073, 2025653), (9917, 1853257), (14147, 1299127), (15463, 1188563), (27641, 664909), (39431, 466099), (43099, 426431), (63511, 289379), (69419, 264751), (94987, 193487)]