261707139

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{271}}^1\times {\mathrm{761}}^1$

素因数の和:1088

約数の個数: 32

約数和(自身を含む): 397946880

約数和(自身を除く): 136239741

約数列:

[1, 3, 9, 27, 47, 141, 271, 423, 761, 813, 1269, 2283, 2439, 6849, 7317, 12737, 20547, 35767, 38211, 107301, 114633, 206231, 321903, 343899, 618693, 965709, 1856079, 5568237, 9692857, 29078571, 87235713, 261707139]

約数ペア:

[(1, 261707139), (3, 87235713), (9, 29078571), (27, 9692857), (47, 5568237), (141, 1856079), (271, 965709), (423, 618693), (761, 343899), (813, 321903), (1269, 206231), (2283, 114633), (2439, 107301), (6849, 38211), (7317, 35767), (12737, 20547)]