28931309

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{661}}^1$

素因数の和:868

約数の個数: 16

約数和(自身を含む): 33174144

約数和(自身を除く): 4242835

約数列:

[1, 11, 23, 173, 253, 661, 1903, 3979, 7271, 15203, 43769, 114353, 167233, 1257883, 2630119, 28931309]

約数ペア:

[(1, 28931309), (11, 2630119), (23, 1257883), (173, 167233), (253, 114353), (661, 43769), (1903, 15203), (3979, 7271)]