21509653

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1061}}^1$

素因数の和:1188

約数の個数: 16

約数和(自身を含む): 24978240

約数和(自身を除く): 3468587

約数列:

[1, 11, 19, 97, 209, 1061, 1067, 1843, 11671, 20159, 20273, 102917, 221749, 1132087, 1955423, 21509653]

約数ペア:

[(1, 21509653), (11, 1955423), (19, 1132087), (97, 221749), (209, 102917), (1061, 20273), (1067, 20159), (1843, 11671)]