138917121

素因数分解:

$3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{60689}}^1$

素因数の和:60808

約数の個数: 16

約数和(自身を含む): 213628800

約数和(自身を除く): 74711679

約数列:

[1, 3, 7, 21, 109, 327, 763, 2289, 60689, 182067, 424823, 1274469, 6615101, 19845303, 46305707, 138917121]

約数ペア:

[(1, 138917121), (3, 46305707), (7, 19845303), (21, 6615101), (109, 1274469), (327, 424823), (763, 182067), (2289, 60689)]