19667599

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{809}}^1$

素因数の和:990

約数の個数: 16

約数和(自身を含む): 23639040

約数和(自身を除く): 3971441

約数列:

[1, 7, 23, 151, 161, 809, 1057, 3473, 5663, 18607, 24311, 122159, 130249, 855113, 2809657, 19667599]

約数ペア:

[(1, 19667599), (7, 2809657), (23, 855113), (151, 130249), (161, 122159), (809, 24311), (1057, 18607), (3473, 5663)]