228987

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{257}}^1$

素因数の和:280

約数の個数: 20

約数和(自身を含む): 374616

約数和(自身を除く): 145629

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 257, 297, 771, 891, 2313, 2827, 6939, 8481, 20817, 25443, 76329, 228987]

約数ペア:

[(1, 228987), (3, 76329), (9, 25443), (11, 20817), (27, 8481), (33, 6939), (81, 2827), (99, 2313), (257, 891), (297, 771)]