20071209

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{283}}^1\times {\mathrm{503}}^1$

素因数の和:836

約数の個数: 16

約数和(自身を含む): 27482112

約数和(自身を除く): 7410903

約数列:

[1, 3, 47, 141, 283, 503, 849, 1509, 13301, 23641, 39903, 70923, 142349, 427047, 6690403, 20071209]

約数ペア:

[(1, 20071209), (3, 6690403), (47, 427047), (141, 142349), (283, 70923), (503, 39903), (849, 23641), (1509, 13301)]