21741339

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{1997}}^1$

素因数の和:2210

約数の個数: 16

約数和(自身を含む): 30689280

約数和(自身を除く): 8947941

約数列:

[1, 3, 19, 57, 191, 573, 1997, 3629, 5991, 10887, 37943, 113829, 381427, 1144281, 7247113, 21741339]

約数ペア:

[(1, 21741339), (3, 7247113), (19, 1144281), (57, 381427), (191, 113829), (573, 37943), (1997, 10887), (3629, 5991)]