25521237

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:164

約数の個数: 80

約数和(自身を含む): 48322560

約数和(自身を除く): 22801323

約数列:

[1, 3, 7, 9, 19, 21, 23, 27, 57, 63, 69, 81, 103, 133, 161, 171, 189, 207, 309, 399, 437, 483, 513, 567, 621, 721, 927, 1197, 1311, 1449, 1539, 1863, 1957, 2163, 2369, 2781, 3059, 3591, 3933, 4347, 5871, 6489, 7107, 8343, 9177, 10773, 11799, 13041, 13699, 16583, 17613, 19467, 21321, 27531, 35397, 41097, 45011, 49749, 52839, 58401, 63963, 82593, 123291, 135033, 149247, 158517, 191889, 247779, 315077, 369873, 405099, 447741, 945231, 1109619, 1215297, 1343223, 2835693, 3645891, 8507079, 25521237]

約数ペア:

[(1, 25521237), (3, 8507079), (7, 3645891), (9, 2835693), (19, 1343223), (21, 1215297), (23, 1109619), (27, 945231), (57, 447741), (63, 405099), (69, 369873), (81, 315077), (103, 247779), (133, 191889), (161, 158517), (171, 149247), (189, 135033), (207, 123291), (309, 82593), (399, 63963), (437, 58401), (483, 52839), (513, 49749), (567, 45011), (621, 41097), (721, 35397), (927, 27531), (1197, 21321), (1311, 19467), (1449, 17613), (1539, 16583), (1863, 13699), (1957, 13041), (2163, 11799), (2369, 10773), (2781, 9177), (3059, 8343), (3591, 7107), (3933, 6489), (4347, 5871)]