21000529

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1129}}^1$

素因数の和:1248

約数の個数: 16

約数和(自身を含む): 24408000

約数和(自身を除く): 3407471

約数列:

[1, 11, 19, 89, 209, 979, 1129, 1691, 12419, 18601, 21451, 100481, 235961, 1105291, 1909139, 21000529]

約数ペア:

[(1, 21000529), (11, 1909139), (19, 1105291), (89, 235961), (209, 100481), (979, 21451), (1129, 18601), (1691, 12419)]