21398508

素因数分解:

$2^2\times 3^2\times {\mathrm{594403}}^1$

素因数の和:594413

約数の個数: 18

約数和(自身を含む): 54090764

約数和(自身を除く): 32692256

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 594403, 1188806, 1783209, 2377612, 3566418, 5349627, 7132836, 10699254, 21398508]

約数ペア:

[(1, 21398508), (2, 10699254), (3, 7132836), (4, 5349627), (6, 3566418), (9, 2377612), (12, 1783209), (18, 1188806), (36, 594403)]