19478238

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{249721}}^1$

素因数の和:249739

約数の個数: 16

約数和(自身を含む): 41953296

約数和(自身を除く): 22475058

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 249721, 499442, 749163, 1498326, 3246373, 6492746, 9739119, 19478238]

約数ペア:

[(1, 19478238), (2, 9739119), (3, 6492746), (6, 3246373), (13, 1498326), (26, 749163), (39, 499442), (78, 249721)]