257126961

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{683}}^1$

素因数の和:910

約数の個数: 48

約数和(自身を含む): 432298944

約数和(自身を除く): 175171983

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 197, 273, 591, 637, 683, 1379, 1911, 2049, 2561, 4137, 4781, 7683, 8879, 9653, 14343, 17927, 26637, 28959, 33467, 53781, 62153, 100401, 125489, 134551, 186459, 376467, 403653, 435071, 941857, 1305213, 1749163, 2825571, 5247489, 6592999, 12244141, 19778997, 36732423, 85708987, 257126961]

約数ペア:

[(1, 257126961), (3, 85708987), (7, 36732423), (13, 19778997), (21, 12244141), (39, 6592999), (49, 5247489), (91, 2825571), (147, 1749163), (197, 1305213), (273, 941857), (591, 435071), (637, 403653), (683, 376467), (1379, 186459), (1911, 134551), (2049, 125489), (2561, 100401), (4137, 62153), (4781, 53781), (7683, 33467), (8879, 28959), (9653, 26637), (14343, 17927)]