21647235

素因数分解:

$3^1\times 5^1\times {\mathrm{887}}^1\times {\mathrm{1627}}^1$

素因数の和:2522

約数の個数: 16

約数和(自身を含む): 34695936

約数和(自身を除く): 13048701

約数列:

[1, 3, 5, 15, 887, 1627, 2661, 4435, 4881, 8135, 13305, 24405, 1443149, 4329447, 7215745, 21647235]

約数ペア:

[(1, 21647235), (3, 7215745), (5, 4329447), (15, 1443149), (887, 24405), (1627, 13305), (2661, 8135), (4435, 4881)]