21916635

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1583}}^1$

素因数の和:1675

約数の個数: 32

約数和(自身を含む): 38320128

約数和(自身を除く): 16403493

約数列:

[1, 3, 5, 13, 15, 39, 65, 71, 195, 213, 355, 923, 1065, 1583, 2769, 4615, 4749, 7915, 13845, 20579, 23745, 61737, 102895, 112393, 308685, 337179, 561965, 1461109, 1685895, 4383327, 7305545, 21916635]

約数ペア:

[(1, 21916635), (3, 7305545), (5, 4383327), (13, 1685895), (15, 1461109), (39, 561965), (65, 337179), (71, 308685), (195, 112393), (213, 102895), (355, 61737), (923, 23745), (1065, 20579), (1583, 13845), (2769, 7915), (4615, 4749)]