291213639

素因数分解:

$3^2\times {\mathrm{137}}^1\times {\mathrm{257}}^1\times {\mathrm{919}}^1$

素因数の和:1319

約数の個数: 24

約数和(自身を含む): 425823840

約数和(自身を除く): 134610201

約数列:

[1, 3, 9, 137, 257, 411, 771, 919, 1233, 2313, 2757, 8271, 35209, 105627, 125903, 236183, 316881, 377709, 708549, 1133127, 2125647, 32357071, 97071213, 291213639]

約数ペア:

[(1, 291213639), (3, 97071213), (9, 32357071), (137, 2125647), (257, 1133127), (411, 708549), (771, 377709), (919, 316881), (1233, 236183), (2313, 125903), (2757, 105627), (8271, 35209)]