20872365

素因数分解:

$3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{8863}}^1$

素因数の和:9028

約数の個数: 16

約数和(自身を含む): 33612288

約数和(自身を除く): 12739923

約数列:

[1, 3, 5, 15, 157, 471, 785, 2355, 8863, 26589, 44315, 132945, 1391491, 4174473, 6957455, 20872365]

約数ペア:

[(1, 20872365), (3, 6957455), (5, 4174473), (15, 1391491), (157, 132945), (471, 44315), (785, 26589), (2355, 8863)]