21345329

素因数分解:

${\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1$

素因数の和:380

約数の個数: 16

約数和(自身を含む): 22978560

約数和(自身を除く): 1633231

約数列:

[1, 31, 43, 67, 239, 1333, 2077, 2881, 7409, 10277, 16013, 89311, 318587, 496403, 688559, 21345329]

約数ペア:

[(1, 21345329), (31, 688559), (43, 496403), (67, 318587), (239, 89311), (1333, 16013), (2077, 10277), (2881, 7409)]