20069959

素因数分解:

$7^4\times {\mathrm{13}}^1\times {\mathrm{643}}^1$

素因数の和:684

約数の個数: 20

約数和(自身を含む): 25253816

約数和(自身を除く): 5183857

約数列:

[1, 7, 13, 49, 91, 343, 637, 643, 2401, 4459, 4501, 8359, 31213, 31507, 58513, 220549, 409591, 1543843, 2867137, 20069959]

約数ペア:

[(1, 20069959), (7, 2867137), (13, 1543843), (49, 409591), (91, 220549), (343, 58513), (637, 31507), (643, 31213), (2401, 8359), (4459, 4501)]