21090084

素因数分解:

$2^2\times 3^1\times {\mathrm{173}}^1\times {\mathrm{10159}}^1$

素因数の和:10339

約数の個数: 24

約数和(自身を含む): 49499520

約数和(自身を除く): 28409436

約数列:

[1, 2, 3, 4, 6, 12, 173, 346, 519, 692, 1038, 2076, 10159, 20318, 30477, 40636, 60954, 121908, 1757507, 3515014, 5272521, 7030028, 10545042, 21090084]

約数ペア:

[(1, 21090084), (2, 10545042), (3, 7030028), (4, 5272521), (6, 3515014), (12, 1757507), (173, 121908), (346, 60954), (519, 40636), (692, 30477), (1038, 20318), (2076, 10159)]