20385231

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{4421}}^1$

素因数の和:4506

約数の個数: 16

約数和(自身を含む): 28654560

約数和(自身を除く): 8269329

約数列:

[1, 3, 29, 53, 87, 159, 1537, 4421, 4611, 13263, 128209, 234313, 384627, 702939, 6795077, 20385231]

約数ペア:

[(1, 20385231), (3, 6795077), (29, 702939), (53, 384627), (87, 234313), (159, 128209), (1537, 13263), (4421, 4611)]