21285913

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{1259}}^1$

素因数の和:1352

約数の個数: 16

約数和(自身を含む): 24494400

約数和(自身を除く): 3208487

約数列:

[1, 11, 29, 53, 319, 583, 1259, 1537, 13849, 16907, 36511, 66727, 401621, 733997, 1935083, 21285913]

約数ペア:

[(1, 21285913), (11, 1935083), (29, 733997), (53, 401621), (319, 66727), (583, 36511), (1259, 16907), (1537, 13849)]