21033951

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1\times {\mathrm{503}}^1$

素因数の和:822

約数の個数: 16

約数和(自身を含む): 28740096

約数和(自身を除く): 7706145

約数列:

[1, 3, 53, 159, 263, 503, 789, 1509, 13939, 26659, 41817, 79977, 132289, 396867, 7011317, 21033951]

約数ペア:

[(1, 21033951), (3, 7011317), (53, 396867), (159, 132289), (263, 79977), (503, 41817), (789, 26659), (1509, 13939)]