20712369

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1\times {\mathrm{523}}^1$

素因数の和:876

約数の個数: 16

約数和(自身を含む): 28404992

約数和(自身を除く): 7692623

約数列:

[1, 3, 43, 129, 307, 523, 921, 1569, 13201, 22489, 39603, 67467, 160561, 481683, 6904123, 20712369]

約数ペア:

[(1, 20712369), (3, 6904123), (43, 481683), (129, 160561), (307, 67467), (523, 39603), (921, 22489), (1569, 13201)]