66979381

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{643}}^1\times {\mathrm{647}}^1$

素因数の和:1320

約数の個数: 16

約数和(自身を含む): 80123904

約数和(自身を除く): 13144523

約数列:

[1, 7, 23, 161, 643, 647, 4501, 4529, 14789, 14881, 103523, 104167, 416021, 2912147, 9568483, 66979381]

約数ペア:

[(1, 66979381), (7, 9568483), (23, 2912147), (161, 416021), (643, 104167), (647, 103523), (4501, 14881), (4529, 14789)]