87220749

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{769}}^1$

素因数の和:1281

約数の個数: 32

約数和(自身を含む): 145474560

約数和(自身を除く): 58253811

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 491, 769, 1473, 2307, 3437, 5383, 5401, 8459, 10311, 16149, 16203, 25377, 37807, 59213, 113421, 177639, 377579, 1132737, 2643053, 4153369, 7929159, 12460107, 29073583, 87220749]

約数ペア:

[(1, 87220749), (3, 29073583), (7, 12460107), (11, 7929159), (21, 4153369), (33, 2643053), (77, 1132737), (231, 377579), (491, 177639), (769, 113421), (1473, 59213), (2307, 37807), (3437, 25377), (5383, 16203), (5401, 16149), (8459, 10311)]