20817465

素因数分解:

$3^1\times 5^1\times {\mathrm{853}}^1\times {\mathrm{1627}}^1$

素因数の和:2488

約数の個数: 16

約数和(自身を含む): 33367488

約数和(自身を除く): 12550023

約数列:

[1, 3, 5, 15, 853, 1627, 2559, 4265, 4881, 8135, 12795, 24405, 1387831, 4163493, 6939155, 20817465]

約数ペア:

[(1, 20817465), (3, 6939155), (5, 4163493), (15, 1387831), (853, 24405), (1627, 12795), (2559, 8135), (4265, 4881)]