19997367

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{26987}}^1$

素因数の和:27022

約数の個数: 16

約数和(自身を含む): 30226560

約数和(自身を除く): 10229193

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 26987, 80961, 350831, 512753, 1052493, 1538259, 6665789, 19997367]

約数ペア:

[(1, 19997367), (3, 6665789), (13, 1538259), (19, 1052493), (39, 512753), (57, 350831), (247, 80961), (741, 26987)]