8247681

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{449}}^1$

素因数の和:625

約数の個数: 24

約数和(自身を含む): 12940200

約数和(自身を除く): 4692519

約数列:

[1, 3, 9, 13, 39, 117, 157, 449, 471, 1347, 1413, 2041, 4041, 5837, 6123, 17511, 18369, 52533, 70493, 211479, 634437, 916409, 2749227, 8247681]

約数ペア:

[(1, 8247681), (3, 2749227), (9, 916409), (13, 634437), (39, 211479), (117, 70493), (157, 52533), (449, 18369), (471, 17511), (1347, 6123), (1413, 5837), (2041, 4041)]