20498335

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28669}}^1$

素因数の和:28698

約数の個数: 16

約数和(自身を含む): 28899360

約数和(自身を除く): 8401025

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 28669, 143345, 315359, 372697, 1576795, 1863485, 4099667, 20498335]

約数ペア:

[(1, 20498335), (5, 4099667), (11, 1863485), (13, 1576795), (55, 372697), (65, 315359), (143, 143345), (715, 28669)]