20758705

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{571}}^1\times {\mathrm{661}}^1$

素因数の和:1248

約数の個数: 16

約数和(自身を含む): 27263808

約数和(自身を除く): 6505103

約数列:

[1, 5, 11, 55, 571, 661, 2855, 3305, 6281, 7271, 31405, 36355, 377431, 1887155, 4151741, 20758705]

約数ペア:

[(1, 20758705), (5, 4151741), (11, 1887155), (55, 377431), (571, 36355), (661, 31405), (2855, 7271), (3305, 6281)]