19985751

素因数分解:

$3^3\times {\mathrm{89}}^1\times {\mathrm{8317}}^1$

素因数の和:8415

約数の個数: 16

約数和(自身を含む): 29944800

約数和(自身を除く): 9959049

約数列:

[1, 3, 9, 27, 89, 267, 801, 2403, 8317, 24951, 74853, 224559, 740213, 2220639, 6661917, 19985751]

約数ペア:

[(1, 19985751), (3, 6661917), (9, 2220639), (27, 740213), (89, 224559), (267, 74853), (801, 24951), (2403, 8317)]