21994329

素因数分解:

$3^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{3001}}^1$

素因数の和:3360

約数の個数: 16

約数和(自身を含む): 33622400

約数和(自身を除く): 11628071

約数列:

[1, 3, 7, 21, 349, 1047, 2443, 3001, 7329, 9003, 21007, 63021, 1047349, 3142047, 7331443, 21994329]

約数ペア:

[(1, 21994329), (3, 7331443), (7, 3142047), (21, 1047349), (349, 63021), (1047, 21007), (2443, 9003), (3001, 7329)]