21123757439

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{28897069}}^1$

素因数の和:28897129

約数の個数: 8

約数和(自身を含む): 22886479440

約数和(自身を除く): 1762722001

約数列:

[1, 17, 43, 731, 28897069, 491250173, 1242573967, 21123757439]

約数ペア:

[(1, 21123757439), (17, 1242573967), (43, 491250173), (731, 28897069)]