251031501

素因数分解:

$3^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{10139}}^1$

素因数の和:10286

約数の個数: 32

約数和(自身を含む): 428313600

約数和(自身を除く): 177282099

約数列:

[1, 3, 7, 9, 21, 27, 63, 131, 189, 393, 917, 1179, 2751, 3537, 8253, 10139, 24759, 30417, 70973, 91251, 212919, 273753, 638757, 1328209, 1916271, 3984627, 9297463, 11953881, 27892389, 35861643, 83677167, 251031501]

約数ペア:

[(1, 251031501), (3, 83677167), (7, 35861643), (9, 27892389), (21, 11953881), (27, 9297463), (63, 3984627), (131, 1916271), (189, 1328209), (393, 638757), (917, 273753), (1179, 212919), (2751, 91251), (3537, 70973), (8253, 30417), (10139, 24759)]