19193991

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{1153}}^1$

素因数の和:1366

約数の個数: 16

約数和(自身を含む): 26588160

約数和(自身を除く): 7394169

約数列:

[1, 3, 31, 93, 179, 537, 1153, 3459, 5549, 16647, 35743, 107229, 206387, 619161, 6397997, 19193991]

約数ペア:

[(1, 19193991), (3, 6397997), (31, 619161), (93, 206387), (179, 107229), (537, 35743), (1153, 16647), (3459, 5549)]