20385897

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{23677}}^1$

素因数の和:23728

約数の個数: 16

約数和(自身を含む): 31823232

約数和(自身を除く): 11437335

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 23677, 71031, 165739, 497217, 970757, 2912271, 6795299, 20385897]

約数ペア:

[(1, 20385897), (3, 6795299), (7, 2912271), (21, 970757), (41, 497217), (123, 165739), (287, 71031), (861, 23677)]