258579

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:227

約数の個数: 16

約数和(自身を含む): 391840

約数和(自身を除く): 133261

約数列:

[1, 3, 9, 27, 61, 157, 183, 471, 549, 1413, 1647, 4239, 9577, 28731, 86193, 258579]

約数ペア:

[(1, 258579), (3, 86193), (9, 28731), (27, 9577), (61, 4239), (157, 1647), (183, 1413), (471, 549)]