28789785

素因数分解:

$3^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1303}}^1$

素因数の和:1805

約数の個数: 24

約数和(自身を含む): 50042304

約数和(自身を除く): 21252519

約数列:

[1, 3, 5, 9, 15, 45, 491, 1303, 1473, 2455, 3909, 4419, 6515, 7365, 11727, 19545, 22095, 58635, 639773, 1919319, 3198865, 5757957, 9596595, 28789785]

約数ペア:

[(1, 28789785), (3, 9596595), (5, 5757957), (9, 3198865), (15, 1919319), (45, 639773), (491, 58635), (1303, 22095), (1473, 19545), (2455, 11727), (3909, 7365), (4419, 6515)]