21967542

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{17189}}^1$

素因数の和:17268

約数の個数: 24

約数和(自身を含む): 48269520

約数和(自身を除く): 26301978

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 17189, 34378, 51567, 103134, 154701, 309402, 1220419, 2440838, 3661257, 7322514, 10983771, 21967542]

約数ペア:

[(1, 21967542), (2, 10983771), (3, 7322514), (6, 3661257), (9, 2440838), (18, 1220419), (71, 309402), (142, 154701), (213, 103134), (426, 51567), (639, 34378), (1278, 17189)]