20807895

素因数分解:

$3^1\times 5^1\times {\mathrm{883}}^1\times {\mathrm{1571}}^1$

素因数の和:2462

約数の個数: 16

約数和(自身を含む): 33351552

約数和(自身を除く): 12543657

約数列:

[1, 3, 5, 15, 883, 1571, 2649, 4415, 4713, 7855, 13245, 23565, 1387193, 4161579, 6935965, 20807895]

約数ペア:

[(1, 20807895), (3, 6935965), (5, 4161579), (15, 1387193), (883, 23565), (1571, 13245), (2649, 7855), (4415, 4713)]