20697170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{159209}}^1$

素因数の和:159229

約数の個数: 16

約数和(自身を含む): 40120920

約数和(自身を除く): 19423750

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 159209, 318418, 796045, 1592090, 2069717, 4139434, 10348585, 20697170]

約数ペア:

[(1, 20697170), (2, 10348585), (5, 4139434), (10, 2069717), (13, 1592090), (26, 796045), (65, 318418), (130, 159209)]