28216287

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{1109}}^1$

素因数の和:1383

約数の個数: 24

約数和(自身を含む): 44675280

約数和(自身を除く): 16458993

約数列:

[1, 3, 9, 11, 33, 99, 257, 771, 1109, 2313, 2827, 3327, 8481, 9981, 12199, 25443, 36597, 109791, 285013, 855039, 2565117, 3135143, 9405429, 28216287]

約数ペア:

[(1, 28216287), (3, 9405429), (9, 3135143), (11, 2565117), (33, 855039), (99, 285013), (257, 109791), (771, 36597), (1109, 25443), (2313, 12199), (2827, 9981), (3327, 8481)]