21889557

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1811}}^1$

素因数の和:1913

約数の個数: 24

約数和(自身を含む): 33920640

約数和(自身を除く): 12031083

約数列:

[1, 3, 9, 17, 51, 79, 153, 237, 711, 1343, 1811, 4029, 5433, 12087, 16299, 30787, 92361, 143069, 277083, 429207, 1287621, 2432173, 7296519, 21889557]

約数ペア:

[(1, 21889557), (3, 7296519), (9, 2432173), (17, 1287621), (51, 429207), (79, 277083), (153, 143069), (237, 92361), (711, 30787), (1343, 16299), (1811, 12087), (4029, 5433)]