20487369

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{33641}}^1$

素因数の和:33680

約数の個数: 16

約数和(自身を含む): 32296320

約数和(自身を除く): 11808951

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 33641, 100923, 235487, 706461, 975589, 2926767, 6829123, 20487369]

約数ペア:

[(1, 20487369), (3, 6829123), (7, 2926767), (21, 975589), (29, 706461), (87, 235487), (203, 100923), (609, 33641)]