18782883

素因数分解:

$3^2\times 7^1\times {\mathrm{281}}^1\times {\mathrm{1061}}^1$

素因数の和:1355

約数の個数: 24

約数和(自身を含む): 31146336

約数和(自身を除く): 12363453

約数列:

[1, 3, 7, 9, 21, 63, 281, 843, 1061, 1967, 2529, 3183, 5901, 7427, 9549, 17703, 22281, 66843, 298141, 894423, 2086987, 2683269, 6260961, 18782883]

約数ペア:

[(1, 18782883), (3, 6260961), (7, 2683269), (9, 2086987), (21, 894423), (63, 298141), (281, 66843), (843, 22281), (1061, 17703), (1967, 9549), (2529, 7427), (3183, 5901)]