21008595

素因数分解:

$3^1\times 5^1\times {\mathrm{887}}^1\times {\mathrm{1579}}^1$

素因数の和:2474

約数の個数: 16

約数和(自身を含む): 33672960

約数和(自身を除く): 12664365

約数列:

[1, 3, 5, 15, 887, 1579, 2661, 4435, 4737, 7895, 13305, 23685, 1400573, 4201719, 7002865, 21008595]

約数ペア:

[(1, 21008595), (3, 7002865), (5, 4201719), (15, 1400573), (887, 23685), (1579, 13305), (2661, 7895), (4435, 4737)]