18637242

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{238939}}^1$

素因数の和:238957

約数の個数: 16

約数和(自身を含む): 40141920

約数和(自身を除く): 21504678

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 238939, 477878, 716817, 1433634, 3106207, 6212414, 9318621, 18637242]

約数ペア:

[(1, 18637242), (2, 9318621), (3, 6212414), (6, 3106207), (13, 1433634), (26, 716817), (39, 477878), (78, 238939)]