28351921

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{757}}^1$

素因数の和:880

約数の個数: 16

約数和(自身を含む): 31751104

約数和(自身を除く): 3399183

約数列:

[1, 13, 43, 67, 559, 757, 871, 2881, 9841, 32551, 37453, 50719, 423163, 659347, 2180917, 28351921]

約数ペア:

[(1, 28351921), (13, 2180917), (43, 659347), (67, 423163), (559, 50719), (757, 37453), (871, 32551), (2881, 9841)]