21177291

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{617}}^1\times {\mathrm{673}}^1$

素因数の和:1310

約数の個数: 16

約数和(自身を含む): 29990304

約数和(自身を除く): 8813013

約数列:

[1, 3, 17, 51, 617, 673, 1851, 2019, 10489, 11441, 31467, 34323, 415241, 1245723, 7059097, 21177291]

約数ペア:

[(1, 21177291), (3, 7059097), (17, 1245723), (51, 415241), (617, 34323), (673, 31467), (1851, 11441), (2019, 10489)]