51351531

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:224

約数の個数: 64

約数和(自身を含む): 90243072

約数和(自身を除く): 38891541

約数列:

[1, 3, 7, 11, 21, 31, 33, 71, 77, 93, 101, 213, 217, 231, 303, 341, 497, 651, 707, 781, 1023, 1111, 1491, 2121, 2201, 2343, 2387, 3131, 3333, 5467, 6603, 7161, 7171, 7777, 9393, 15407, 16401, 21513, 21917, 23331, 24211, 34441, 46221, 50197, 65751, 72633, 78881, 103323, 150591, 169477, 222301, 236643, 241087, 508431, 552167, 666903, 723261, 1556107, 1656501, 2445311, 4668321, 7335933, 17117177, 51351531]

約数ペア:

[(1, 51351531), (3, 17117177), (7, 7335933), (11, 4668321), (21, 2445311), (31, 1656501), (33, 1556107), (71, 723261), (77, 666903), (93, 552167), (101, 508431), (213, 241087), (217, 236643), (231, 222301), (303, 169477), (341, 150591), (497, 103323), (651, 78881), (707, 72633), (781, 65751), (1023, 50197), (1111, 46221), (1491, 34441), (2121, 24211), (2201, 23331), (2343, 21917), (2387, 21513), (3131, 16401), (3333, 15407), (5467, 9393), (6603, 7777), (7161, 7171)]