21121611

素因数分解:

$3^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{3739}}^1$

素因数の和:4018

約数の個数: 16

約数和(自身を含む): 32313600

約数和(自身を除く): 11191989

約数列:

[1, 3, 7, 21, 269, 807, 1883, 3739, 5649, 11217, 26173, 78519, 1005791, 3017373, 7040537, 21121611]

約数ペア:

[(1, 21121611), (3, 7040537), (7, 3017373), (21, 1005791), (269, 78519), (807, 26173), (1883, 11217), (3739, 5649)]