20378265

素因数分解:

$3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{13451}}^1$

素因数の和:13560

約数の個数: 16

約数和(自身を含む): 32930496

約数和(自身を除く): 12552231

約数列:

[1, 3, 5, 15, 101, 303, 505, 1515, 13451, 40353, 67255, 201765, 1358551, 4075653, 6792755, 20378265]

約数ペア:

[(1, 20378265), (3, 6792755), (5, 4075653), (15, 1358551), (101, 201765), (303, 67255), (505, 40353), (1515, 13451)]