21271587

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{1759}}^1$

素因数の和:1930

約数の個数: 16

約数和(自身を含む): 29568000

約数和(自身を除く): 8296413

約数列:

[1, 3, 29, 87, 139, 417, 1759, 4031, 5277, 12093, 51011, 153033, 244501, 733503, 7090529, 21271587]

約数ペア:

[(1, 21271587), (3, 7090529), (29, 733503), (87, 244501), (139, 153033), (417, 51011), (1759, 12093), (4031, 5277)]