21393878

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{619}}^1\times {\mathrm{1571}}^1$

素因数の和:2203

約数の個数: 16

約数和(自身を含む): 35087040

約数和(自身を除く): 13693162

約数列:

[1, 2, 11, 22, 619, 1238, 1571, 3142, 6809, 13618, 17281, 34562, 972449, 1944898, 10696939, 21393878]

約数ペア:

[(1, 21393878), (2, 10696939), (11, 1944898), (22, 972449), (619, 34562), (1238, 17281), (1571, 13618), (3142, 6809)]