20889201

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1\times {\mathrm{613}}^1$

素因数の和:960

約数の個数: 16

約数和(自身を含む): 28745024

約数和(自身を除く): 7855823

約数列:

[1, 3, 37, 111, 307, 613, 921, 1839, 11359, 22681, 34077, 68043, 188191, 564573, 6963067, 20889201]

約数ペア:

[(1, 20889201), (3, 6963067), (37, 564573), (111, 188191), (307, 68043), (613, 34077), (921, 22681), (1839, 11359)]