2897811

素因数分解:

$3^2\times 7^2\times {\mathrm{6571}}^1$

素因数の和:6591

約数の個数: 18

約数和(自身を含む): 4869852

約数和(自身を除く): 1972041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 6571, 19713, 45997, 59139, 137991, 321979, 413973, 965937, 2897811]

約数ペア:

[(1, 2897811), (3, 965937), (7, 413973), (9, 321979), (21, 137991), (49, 59139), (63, 45997), (147, 19713), (441, 6571)]