21127051

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{643}}^1$

素因数の和:786

約数の個数: 16

約数和(自身を含む): 24111360

約数和(自身を除く): 2984309

約数列:

[1, 11, 29, 103, 319, 643, 1133, 2987, 7073, 18647, 32857, 66229, 205117, 728519, 1920641, 21127051]

約数ペア:

[(1, 21127051), (11, 1920641), (29, 728519), (103, 205117), (319, 66229), (643, 32857), (1133, 18647), (2987, 7073)]