21246897

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{24677}}^1$

素因数の和:24728

約数の個数: 16

約数和(自身を含む): 33167232

約数和(自身を除く): 11920335

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 24677, 74031, 172739, 518217, 1011757, 3035271, 7082299, 21246897]

約数ペア:

[(1, 21246897), (3, 7082299), (7, 3035271), (21, 1011757), (41, 518217), (123, 172739), (287, 74031), (861, 24677)]