18779715

素因数分解:

$3^3\times 5^1\times {\mathrm{139109}}^1$

素因数の和:139123

約数の個数: 16

約数和(自身を含む): 33386400

約数和(自身を除く): 14606685

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 139109, 417327, 695545, 1251981, 2086635, 3755943, 6259905, 18779715]

約数ペア:

[(1, 18779715), (3, 6259905), (5, 3755943), (9, 2086635), (15, 1251981), (27, 695545), (45, 417327), (135, 139109)]