21045042

素因数分解:

$2^1\times 3^3\times {\mathrm{389723}}^1$

素因数の和:389734

約数の個数: 16

約数和(自身を含む): 46766880

約数和(自身を除く): 25721838

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 389723, 779446, 1169169, 2338338, 3507507, 7015014, 10522521, 21045042]

約数ペア:

[(1, 21045042), (2, 10522521), (3, 7015014), (6, 3507507), (9, 2338338), (18, 1169169), (27, 779446), (54, 389723)]