278829

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{449}}^1$

素因数の和:481

約数の個数: 16

約数和(自身を含む): 432000

約数和(自身を除く): 153171

約数列:

[1, 3, 9, 23, 27, 69, 207, 449, 621, 1347, 4041, 10327, 12123, 30981, 92943, 278829]

約数ペア:

[(1, 278829), (3, 92943), (9, 30981), (23, 12123), (27, 10327), (69, 4041), (207, 1347), (449, 621)]