21712713

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{28607}}^1$

素因数の和:28644

約数の個数: 16

約数和(自身を含む): 32956416

約数和(自身を除く): 11243703

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 28607, 85821, 314677, 657961, 944031, 1973883, 7237571, 21712713]

約数ペア:

[(1, 21712713), (3, 7237571), (11, 1973883), (23, 944031), (33, 657961), (69, 314677), (253, 85821), (759, 28607)]