20004951

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{857}}^1$

素因数の和:1142

約数の個数: 16

約数和(自身を含む): 27675648

約数和(自身を除く): 7670697

約数列:

[1, 3, 31, 93, 251, 753, 857, 2571, 7781, 23343, 26567, 79701, 215107, 645321, 6668317, 20004951]

約数ペア:

[(1, 20004951), (3, 6668317), (31, 645321), (93, 215107), (251, 79701), (753, 26567), (857, 23343), (2571, 7781)]