20117157

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{5501}}^1$

素因数の和:5580

約数の個数: 16

約数和(自身を含む): 28522368

約数和(自身を除く): 8405211

約数列:

[1, 3, 23, 53, 69, 159, 1219, 3657, 5501, 16503, 126523, 291553, 379569, 874659, 6705719, 20117157]

約数ペア:

[(1, 20117157), (3, 6705719), (23, 874659), (53, 379569), (69, 291553), (159, 126523), (1219, 16503), (3657, 5501)]