21206307

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{3253}}^1$

素因数の和:3350

約数の個数: 16

約数和(自身を含む): 29520288

約数和(自身を除く): 8313981

約数列:

[1, 3, 41, 53, 123, 159, 2173, 3253, 6519, 9759, 133373, 172409, 400119, 517227, 7068769, 21206307]

約数ペア:

[(1, 21206307), (3, 7068769), (41, 517227), (53, 400119), (123, 172409), (159, 133373), (2173, 9759), (3253, 6519)]