208983009

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{449}}^1\times {\mathrm{3301}}^1$

素因数の和:3800

約数の個数: 16

約数和(自身を含む): 285292800

約数和(自身を除く): 76309791

約数列:

[1, 3, 47, 141, 449, 1347, 3301, 9903, 21103, 63309, 155147, 465441, 1482149, 4446447, 69661003, 208983009]

約数ペア:

[(1, 208983009), (3, 69661003), (47, 4446447), (141, 1482149), (449, 465441), (1347, 155147), (3301, 63309), (9903, 21103)]