21558227

素因数分解:

${\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{337}}^1$

素因数の和:478

約数の個数: 16

約数和(自身を含む): 23654592

約数和(自身を除く): 2096365

約数列:

[1, 17, 53, 71, 337, 901, 1207, 3763, 5729, 17861, 23927, 63971, 303637, 406759, 1268131, 21558227]

約数ペア:

[(1, 21558227), (17, 1268131), (53, 406759), (71, 303637), (337, 63971), (901, 23927), (1207, 17861), (3763, 5729)]