19877944

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{80153}}^1$

素因数の和:80190

約数の個数: 16

約数和(自身を含む): 38473920

約数和(自身を除く): 18595976

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 80153, 160306, 320612, 641224, 2484743, 4969486, 9938972, 19877944]

約数ペア:

[(1, 19877944), (2, 9938972), (4, 4969486), (8, 2484743), (31, 641224), (62, 320612), (124, 160306), (248, 80153)]