21637847

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{1861}}^1$

素因数の和:2030

約数の個数: 16

約数和(自身を含む): 27170304

約数和(自身を除く): 5532457

約数列:

[1, 7, 11, 77, 151, 1057, 1661, 1861, 11627, 13027, 20471, 143297, 281011, 1967077, 3091121, 21637847]

約数ペア:

[(1, 21637847), (7, 3091121), (11, 1967077), (77, 281011), (151, 143297), (1057, 20471), (1661, 13027), (1861, 11627)]