21309555

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{45827}}^1$

素因数の和:45866

約数の個数: 16

約数和(自身を含む): 35195904

約数和(自身を除く): 13886349

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 45827, 137481, 229135, 687405, 1420637, 4261911, 7103185, 21309555]

約数ペア:

[(1, 21309555), (3, 7103185), (5, 4261911), (15, 1420637), (31, 687405), (93, 229135), (155, 137481), (465, 45827)]