21288231

素因数分解:

$3^3\times {\mathrm{487}}^1\times {\mathrm{1619}}^1$

素因数の和:2115

約数の個数: 16

約数和(自身を含む): 31622400

約数和(自身を除く): 10334169

約数列:

[1, 3, 9, 27, 487, 1461, 1619, 4383, 4857, 13149, 14571, 43713, 788453, 2365359, 7096077, 21288231]

約数ペア:

[(1, 21288231), (3, 7096077), (9, 2365359), (27, 788453), (487, 43713), (1461, 14571), (1619, 13149), (4383, 4857)]