81691484

素因数分解:

$2^2\times 7^1\times {\mathrm{397}}^1\times {\mathrm{7349}}^1$

素因数の和:7757

約数の個数: 24

約数和(自身を含む): 163816800

約数和(自身を除く): 82125316

約数列:

[1, 2, 4, 7, 14, 28, 397, 794, 1588, 2779, 5558, 7349, 11116, 14698, 29396, 51443, 102886, 205772, 2917553, 5835106, 11670212, 20422871, 40845742, 81691484]

約数ペア:

[(1, 81691484), (2, 40845742), (4, 20422871), (7, 11670212), (14, 5835106), (28, 2917553), (397, 205772), (794, 102886), (1588, 51443), (2779, 29396), (5558, 14698), (7349, 11116)]