20487939

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{631}}^1$

素因数の和:850

約数の個数: 16

約数和(自身を含む): 27909120

約数和(自身を除く): 7421181

約数列:

[1, 3, 79, 137, 237, 411, 631, 1893, 10823, 32469, 49849, 86447, 149547, 259341, 6829313, 20487939]

約数ペア:

[(1, 20487939), (3, 6829313), (79, 259341), (137, 149547), (237, 86447), (411, 49849), (631, 32469), (1893, 10823)]