254187891

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 391248000

約数和(自身を除く): 137060109

約数列:

[1, 3, 9, 37, 47, 109, 111, 141, 149, 327, 333, 423, 447, 981, 1341, 1739, 4033, 5123, 5217, 5513, 7003, 12099, 15369, 15651, 16241, 16539, 21009, 36297, 46107, 48723, 49617, 63027, 146169, 189551, 259111, 568653, 600917, 763327, 777333, 1705959, 1802751, 2289981, 2331999, 5408253, 6869943, 28243099, 84729297, 254187891]

約数ペア:

[(1, 254187891), (3, 84729297), (9, 28243099), (37, 6869943), (47, 5408253), (109, 2331999), (111, 2289981), (141, 1802751), (149, 1705959), (327, 777333), (333, 763327), (423, 600917), (447, 568653), (981, 259111), (1341, 189551), (1739, 146169), (4033, 63027), (5123, 49617), (5217, 48723), (5513, 46107), (7003, 36297), (12099, 21009), (15369, 16539), (15651, 16241)]