20101915

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1\times {\mathrm{563}}^1$

素因数の和:798

約数の個数: 16

約数和(自身を含む): 24946848

約数和(自身を除く): 4844933

約数列:

[1, 5, 37, 185, 193, 563, 965, 2815, 7141, 20831, 35705, 104155, 108659, 543295, 4020383, 20101915]

約数ペア:

[(1, 20101915), (5, 4020383), (37, 543295), (185, 108659), (193, 104155), (563, 35705), (965, 20831), (2815, 7141)]