21819315

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10937}}^1$

素因数の和:10971

約数の個数: 32

約数和(自身を含む): 42001920

約数和(自身を除く): 20182605

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 10937, 32811, 54685, 76559, 164055, 207803, 229677, 382795, 623409, 1039015, 1148385, 1454621, 3117045, 4363863, 7273105, 21819315]

約数ペア:

[(1, 21819315), (3, 7273105), (5, 4363863), (7, 3117045), (15, 1454621), (19, 1148385), (21, 1039015), (35, 623409), (57, 382795), (95, 229677), (105, 207803), (133, 164055), (285, 76559), (399, 54685), (665, 32811), (1995, 10937)]