280496727

素因数分解:

$3^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{10427}}^1$

素因数の和:10508

約数の個数: 36

約数和(自身を含む): 479083176

約数和(自身を除く): 198586449

約数列:

[1, 3, 7, 9, 21, 49, 61, 63, 147, 183, 427, 441, 549, 1281, 2989, 3843, 8967, 10427, 26901, 31281, 72989, 93843, 218967, 510923, 636047, 656901, 1532769, 1908141, 4452329, 4598307, 5724423, 13356987, 31166303, 40070961, 93498909, 280496727]

約数ペア:

[(1, 280496727), (3, 93498909), (7, 40070961), (9, 31166303), (21, 13356987), (49, 5724423), (61, 4598307), (63, 4452329), (147, 1908141), (183, 1532769), (427, 656901), (441, 636047), (549, 510923), (1281, 218967), (2989, 93843), (3843, 72989), (8967, 31281), (10427, 26901)]