21939489

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17047}}^1$

素因数の和:17077

約数の個数: 24

約数和(自身を含む): 37232832

約数和(自身を除く): 15293343

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 1287, 17047, 51141, 153423, 187517, 221611, 562551, 664833, 1687653, 1994499, 2437721, 7313163, 21939489]

約数ペア:

[(1, 21939489), (3, 7313163), (9, 2437721), (11, 1994499), (13, 1687653), (33, 664833), (39, 562551), (99, 221611), (117, 187517), (143, 153423), (429, 51141), (1287, 17047)]