581661

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:222

約数の個数: 20

約数和(自身を含む): 894432

約数和(自身を除く): 312771

約数列:

[1, 3, 9, 27, 43, 81, 129, 167, 387, 501, 1161, 1503, 3483, 4509, 7181, 13527, 21543, 64629, 193887, 581661]

約数ペア:

[(1, 581661), (3, 193887), (9, 64629), (27, 21543), (43, 13527), (81, 7181), (129, 4509), (167, 3483), (387, 1503), (501, 1161)]