7971271

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{643}}^1$

素因数の和:691

約数の個数: 24

約数和(自身を含む): 10571904

約数和(自身を除く): 2600633

約数列:

[1, 7, 11, 23, 49, 77, 161, 253, 539, 643, 1127, 1771, 4501, 7073, 12397, 14789, 31507, 49511, 103523, 162679, 346577, 724661, 1138753, 7971271]

約数ペア:

[(1, 7971271), (7, 1138753), (11, 724661), (23, 346577), (49, 162679), (77, 103523), (161, 49511), (253, 31507), (539, 14789), (643, 12397), (1127, 7073), (1771, 4501)]