21724703

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1973}}^1$

素因数の和:2015

約数の個数: 24

約数和(自身を含む): 29404704

約数和(自身を除く): 7680001

約数列:

[1, 7, 11, 13, 77, 91, 121, 143, 847, 1001, 1573, 1973, 11011, 13811, 21703, 25649, 151921, 179543, 238733, 282139, 1671131, 1974973, 3103529, 21724703]

約数ペア:

[(1, 21724703), (7, 3103529), (11, 1974973), (13, 1671131), (77, 282139), (91, 238733), (121, 179543), (143, 151921), (847, 25649), (1001, 21703), (1573, 13811), (1973, 11011)]