21041427

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37507}}^1$

素因数の和:37538

約数の個数: 16

約数和(自身を含む): 32406912

約数和(自身を除く): 11365485

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 37507, 112521, 412577, 637619, 1237731, 1912857, 7013809, 21041427]

約数ペア:

[(1, 21041427), (3, 7013809), (11, 1912857), (17, 1237731), (33, 637619), (51, 412577), (187, 112521), (561, 37507)]