209971005

素因数分解:

$3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{110221}}^1$

素因数の和:110356

約数の個数: 16

約数和(自身を含む): 338601984

約数和(自身を除く): 128630979

約数列:

[1, 3, 5, 15, 127, 381, 635, 1905, 110221, 330663, 551105, 1653315, 13998067, 41994201, 69990335, 209971005]

約数ペア:

[(1, 209971005), (3, 69990335), (5, 41994201), (15, 13998067), (127, 1653315), (381, 551105), (635, 330663), (1905, 110221)]