21564639

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{5483}}^1$

素因数の和:5531

約数の個数: 24

約数和(自身を含む): 34220160

約数和(自身を除く): 12655521

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 437, 1311, 3933, 5483, 16449, 49347, 104177, 126109, 312531, 378327, 937593, 1134981, 2396071, 7188213, 21564639]

約数ペア:

[(1, 21564639), (3, 7188213), (9, 2396071), (19, 1134981), (23, 937593), (57, 378327), (69, 312531), (171, 126109), (207, 104177), (437, 49347), (1311, 16449), (3933, 5483)]