21690951

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{4817}}^1$

素因数の和:4918

約数の個数: 16

約数和(自身を含む): 30835200

約数和(自身を除く): 9144249

約数列:

[1, 3, 19, 57, 79, 237, 1501, 4503, 4817, 14451, 91523, 274569, 380543, 1141629, 7230317, 21690951]

約数ペア:

[(1, 21690951), (3, 7230317), (19, 1141629), (57, 380543), (79, 274569), (237, 91523), (1501, 14451), (4503, 4817)]