28478367

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{991}}^1$

素因数の和:1131

約数の個数: 24

約数和(自身を含む): 42917888

約数和(自身を除く): 14439521

約数列:

[1, 3, 9, 31, 93, 103, 279, 309, 927, 991, 2973, 3193, 8919, 9579, 28737, 30721, 92163, 102073, 276489, 306219, 918657, 3164263, 9492789, 28478367]

約数ペア:

[(1, 28478367), (3, 9492789), (9, 3164263), (31, 918657), (93, 306219), (103, 276489), (279, 102073), (309, 92163), (927, 30721), (991, 28737), (2973, 9579), (3193, 8919)]