19728879

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1\times {\mathrm{743}}^1$

素因数の和:966

約数の個数: 16

約数和(自身を含む): 26998272

約数和(自身を除く): 7269393

約数列:

[1, 3, 53, 159, 167, 501, 743, 2229, 8851, 26553, 39379, 118137, 124081, 372243, 6576293, 19728879]

約数ペア:

[(1, 19728879), (3, 6576293), (53, 372243), (159, 124081), (167, 118137), (501, 39379), (743, 26553), (2229, 8851)]