28207971

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{499}}^1\times {\mathrm{571}}^1$

素因数の和:1087

約数の個数: 24

約数和(自身を含む): 44616000

約数和(自身を除く): 16408029

約数列:

[1, 3, 9, 11, 33, 99, 499, 571, 1497, 1713, 4491, 5139, 5489, 6281, 16467, 18843, 49401, 56529, 284929, 854787, 2564361, 3134219, 9402657, 28207971]

約数ペア:

[(1, 28207971), (3, 9402657), (9, 3134219), (11, 2564361), (33, 854787), (99, 284929), (499, 56529), (571, 49401), (1497, 18843), (1713, 16467), (4491, 6281), (5139, 5489)]