20389317

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{1213}}^1$

素因数の和:1660

約数の個数: 16

約数和(自身を含む): 29369088

約数和(自身を除く): 8979771

約数列:

[1, 3, 13, 39, 431, 1213, 1293, 3639, 5603, 15769, 16809, 47307, 522803, 1568409, 6796439, 20389317]

約数ペア:

[(1, 20389317), (3, 6796439), (13, 1568409), (39, 522803), (431, 47307), (1213, 16809), (1293, 15769), (3639, 5603)]