19864372

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{661}}^1\times {\mathrm{683}}^1$

素因数の和:1359

約数の個数: 24

約数和(自身を含む): 38035872

約数和(自身を除く): 18171500

約数列:

[1, 2, 4, 11, 22, 44, 661, 683, 1322, 1366, 2644, 2732, 7271, 7513, 14542, 15026, 29084, 30052, 451463, 902926, 1805852, 4966093, 9932186, 19864372]

約数ペア:

[(1, 19864372), (2, 9932186), (4, 4966093), (11, 1805852), (22, 902926), (44, 451463), (661, 30052), (683, 29084), (1322, 15026), (1366, 14542), (2644, 7513), (2732, 7271)]