21531777

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{2011}}^1$

素因数の和:2140

約数の個数: 16

約数和(自身を含む): 29745408

約数和(自身を除く): 8213631

約数列:

[1, 3, 43, 83, 129, 249, 2011, 3569, 6033, 10707, 86473, 166913, 259419, 500739, 7177259, 21531777]

約数ペア:

[(1, 21531777), (3, 7177259), (43, 500739), (83, 259419), (129, 166913), (249, 86473), (2011, 10707), (3569, 6033)]