20278977

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{2381}}^1$

素因数の和:2568

約数の個数: 16

約数和(自身を含む): 28812672

約数和(自身を除く): 8533695

約数列:

[1, 3, 17, 51, 167, 501, 2381, 2839, 7143, 8517, 40477, 121431, 397627, 1192881, 6759659, 20278977]

約数ペア:

[(1, 20278977), (3, 6759659), (17, 1192881), (51, 397627), (167, 121431), (501, 40477), (2381, 8517), (2839, 7143)]