21815622

素因数分解:

$2^1\times 3^3\times {\mathrm{403993}}^1$

素因数の和:404004

約数の個数: 16

約数和(自身を含む): 48479280

約数和(自身を除く): 26663658

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 403993, 807986, 1211979, 2423958, 3635937, 7271874, 10907811, 21815622]

約数ペア:

[(1, 21815622), (2, 10907811), (3, 7271874), (6, 3635937), (9, 2423958), (18, 1211979), (27, 807986), (54, 403993)]