20809438

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{17029}}^1$

素因数の和:17091

約数の個数: 16

約数和(自身を含む): 34332480

約数和(自身を除く): 13523042

約数列:

[1, 2, 13, 26, 47, 94, 611, 1222, 17029, 34058, 221377, 442754, 800363, 1600726, 10404719, 20809438]

約数ペア:

[(1, 20809438), (2, 10404719), (13, 1600726), (26, 800363), (47, 442754), (94, 221377), (611, 34058), (1222, 17029)]