28980009

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{431}}^1$

素因数の和:709

約数の個数: 24

約数和(自身を含む): 43490304

約数和(自身を除く): 14510295

約数列:

[1, 3, 9, 31, 93, 241, 279, 431, 723, 1293, 2169, 3879, 7471, 13361, 22413, 40083, 67239, 103871, 120249, 311613, 934839, 3220001, 9660003, 28980009]

約数ペア:

[(1, 28980009), (3, 9660003), (9, 3220001), (31, 934839), (93, 311613), (241, 120249), (279, 103871), (431, 67239), (723, 40083), (1293, 22413), (2169, 13361), (3879, 7471)]