20415255

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{194431}}^1$

素因数の和:194446

約数の個数: 16

約数和(自身を含む): 37330944

約数和(自身を除く): 16915689

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 194431, 583293, 972155, 1361017, 2916465, 4083051, 6805085, 20415255]

約数ペア:

[(1, 20415255), (3, 6805085), (5, 4083051), (7, 2916465), (15, 1361017), (21, 972155), (35, 583293), (105, 194431)]