21009435

素因数分解:

$3^1\times 5^1\times {\mathrm{167}}^1\times {\mathrm{8387}}^1$

素因数の和:8562

約数の個数: 16

約数和(自身を含む): 33820416

約数和(自身を除く): 12810981

約数列:

[1, 3, 5, 15, 167, 501, 835, 2505, 8387, 25161, 41935, 125805, 1400629, 4201887, 7003145, 21009435]

約数ペア:

[(1, 21009435), (3, 7003145), (5, 4201887), (15, 1400629), (167, 125805), (501, 41935), (835, 25161), (2505, 8387)]