21001023

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{643}}^1$

素因数の和:859

約数の個数: 24

約数和(自身を含む): 32148480

約数和(自身を除く): 11147457

約数列:

[1, 3, 9, 19, 57, 171, 191, 573, 643, 1719, 1929, 3629, 5787, 10887, 12217, 32661, 36651, 109953, 122813, 368439, 1105317, 2333447, 7000341, 21001023]

約数ペア:

[(1, 21001023), (3, 7000341), (9, 2333447), (19, 1105317), (57, 368439), (171, 122813), (191, 109953), (573, 36651), (643, 32661), (1719, 12217), (1929, 10887), (3629, 5787)]