291293247

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{1667}}^1$

素因数の和:1887

約数の個数: 32

約数和(自身を含む): 455404032

約数和(自身を除く): 164110785

約数列:

[1, 3, 7, 21, 53, 157, 159, 371, 471, 1099, 1113, 1667, 3297, 5001, 8321, 11669, 24963, 35007, 58247, 88351, 174741, 261719, 265053, 618457, 785157, 1832033, 1855371, 5496099, 13871107, 41613321, 97097749, 291293247]

約数ペア:

[(1, 291293247), (3, 97097749), (7, 41613321), (21, 13871107), (53, 5496099), (157, 1855371), (159, 1832033), (371, 785157), (471, 618457), (1099, 265053), (1113, 261719), (1667, 174741), (3297, 88351), (5001, 58247), (8321, 35007), (11669, 24963)]