20091561

素因数分解:

$3^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{11527}}^1$

素因数の和:11620

約数の個数: 16

約数和(自身を含む): 30987264

約数和(自身を除く): 10895703

約数列:

[1, 3, 7, 21, 83, 249, 581, 1743, 11527, 34581, 80689, 242067, 956741, 2870223, 6697187, 20091561]

約数ペア:

[(1, 20091561), (3, 6697187), (7, 2870223), (21, 956741), (83, 242067), (249, 80689), (581, 34581), (1743, 11527)]