28718577

素因数分解:

$3^3\times {\mathrm{71}}^2\times {\mathrm{211}}^1$

素因数の和:362

約数の個数: 24

約数和(自身を含む): 43358240

約数和(自身を除く): 14639663

約数列:

[1, 3, 9, 27, 71, 211, 213, 633, 639, 1899, 1917, 5041, 5697, 14981, 15123, 44943, 45369, 134829, 136107, 404487, 1063651, 3190953, 9572859, 28718577]

約数ペア:

[(1, 28718577), (3, 9572859), (9, 3190953), (27, 1063651), (71, 404487), (211, 136107), (213, 134829), (633, 45369), (639, 44943), (1899, 15123), (1917, 14981), (5041, 5697)]