20854366

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{1861}}^1$

素因数の和:2307

約数の個数: 16

約数和(自身を含む): 33784128

約数和(自身を除く): 12929762

約数列:

[1, 2, 13, 26, 431, 862, 1861, 3722, 5603, 11206, 24193, 48386, 802091, 1604182, 10427183, 20854366]

約数ペア:

[(1, 20854366), (2, 10427183), (13, 1604182), (26, 802091), (431, 48386), (862, 24193), (1861, 11206), (3722, 5603)]