64990887

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{383}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 98918400

約数和(自身を除く): 33927513

約数列:

[1, 3, 13, 19, 39, 57, 229, 247, 383, 687, 741, 1149, 2977, 4351, 4979, 7277, 8931, 13053, 14937, 21831, 56563, 87707, 94601, 169689, 263121, 283803, 1140191, 1666433, 3420573, 4999299, 21663629, 64990887]

約数ペア:

[(1, 64990887), (3, 21663629), (13, 4999299), (19, 3420573), (39, 1666433), (57, 1140191), (229, 283803), (247, 263121), (383, 169689), (687, 94601), (741, 87707), (1149, 56563), (2977, 21831), (4351, 14937), (4979, 13053), (7277, 8931)]