21868299

素因数分解:

$3^5\times {\mathrm{31}}^1\times {\mathrm{2903}}^1$

素因数の和:2949

約数の個数: 24

約数和(自身を含む): 33825792

約数和(自身を除く): 11957493

約数列:

[1, 3, 9, 27, 31, 81, 93, 243, 279, 837, 2511, 2903, 7533, 8709, 26127, 78381, 89993, 235143, 269979, 705429, 809937, 2429811, 7289433, 21868299]

約数ペア:

[(1, 21868299), (3, 7289433), (9, 2429811), (27, 809937), (31, 705429), (81, 269979), (93, 235143), (243, 89993), (279, 78381), (837, 26127), (2511, 8709), (2903, 7533)]