21098759

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{643}}^1$

素因数の和:830

約数の個数: 16

約数和(自身を含む): 24420480

約数和(自身を除く): 3321721

約数列:

[1, 11, 19, 157, 209, 643, 1727, 2983, 7073, 12217, 32813, 100951, 134387, 1110461, 1918069, 21098759]

約数ペア:

[(1, 21098759), (11, 1918069), (19, 1110461), (157, 134387), (209, 100951), (643, 32813), (1727, 12217), (2983, 7073)]