287295417

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{373}}^1$

素因数の和:679

約数の個数: 40

約数和(自身を含む): 443670216

約数和(自身を除く): 156374799

約数列:

[1, 3, 9, 27, 37, 81, 111, 257, 333, 373, 771, 999, 1119, 2313, 2997, 3357, 6939, 9509, 10071, 13801, 20817, 28527, 30213, 41403, 85581, 95861, 124209, 256743, 287583, 372627, 770229, 862749, 1117881, 2588247, 3546857, 7764741, 10640571, 31921713, 95765139, 287295417]

約数ペア:

[(1, 287295417), (3, 95765139), (9, 31921713), (27, 10640571), (37, 7764741), (81, 3546857), (111, 2588247), (257, 1117881), (333, 862749), (373, 770229), (771, 372627), (999, 287583), (1119, 256743), (2313, 124209), (2997, 95861), (3357, 85581), (6939, 41403), (9509, 30213), (10071, 28527), (13801, 20817)]