20981322

素因数分解:

$2^1\times 3^3\times {\mathrm{53}}^1\times {\mathrm{7331}}^1$

素因数の和:7395

約数の個数: 32

約数和(自身を含む): 47511360

約数和(自身を除く): 26530038

約数列:

[1, 2, 3, 6, 9, 18, 27, 53, 54, 106, 159, 318, 477, 954, 1431, 2862, 7331, 14662, 21993, 43986, 65979, 131958, 197937, 388543, 395874, 777086, 1165629, 2331258, 3496887, 6993774, 10490661, 20981322]

約数ペア:

[(1, 20981322), (2, 10490661), (3, 6993774), (6, 3496887), (9, 2331258), (18, 1165629), (27, 777086), (53, 395874), (54, 388543), (106, 197937), (159, 131958), (318, 65979), (477, 43986), (954, 21993), (1431, 14662), (2862, 7331)]