256148919

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{15527}}^1$

素因数の和:15596

約数の個数: 32

約数和(自身を含む): 417392640

約数和(自身を除く): 161243721

約数列:

[1, 3, 9, 13, 27, 39, 47, 117, 141, 351, 423, 611, 1269, 1833, 5499, 15527, 16497, 46581, 139743, 201851, 419229, 605553, 729769, 1816659, 2189307, 5449977, 6567921, 9486997, 19703763, 28460991, 85382973, 256148919]

約数ペア:

[(1, 256148919), (3, 85382973), (9, 28460991), (13, 19703763), (27, 9486997), (39, 6567921), (47, 5449977), (117, 2189307), (141, 1816659), (351, 729769), (423, 605553), (611, 419229), (1269, 201851), (1833, 139743), (5499, 46581), (15527, 16497)]