20819903

素因数分解:

${\mathrm{13}}^1\times {\mathrm{1231}}^1\times {\mathrm{1301}}^1$

素因数の和:2545

約数の個数: 8

約数和(自身を含む): 22456896

約数和(自身を除く): 1636993

約数列:

[1, 13, 1231, 1301, 16003, 16913, 1601531, 20819903]

約数ペア:

[(1, 20819903), (13, 1601531), (1231, 16913), (1301, 16003)]