20603289

素因数分解:

$3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{9001}}^1$

素因数の和:9120

約数の個数: 16

約数和(自身を含む): 31687040

約数和(自身を除く): 11083751

約数列:

[1, 3, 7, 21, 109, 327, 763, 2289, 9001, 27003, 63007, 189021, 981109, 2943327, 6867763, 20603289]

約数ペア:

[(1, 20603289), (3, 6867763), (7, 2943327), (21, 981109), (109, 189021), (327, 63007), (763, 27003), (2289, 9001)]