8136921

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 12544000

約数和(自身を除く): 4407079

約数列:

[1, 3, 13, 19, 39, 57, 79, 139, 237, 247, 417, 741, 1027, 1501, 1807, 2641, 3081, 4503, 5421, 7923, 10981, 19513, 32943, 34333, 58539, 102999, 142753, 208639, 428259, 625917, 2712307, 8136921]

約数ペア:

[(1, 8136921), (3, 2712307), (13, 625917), (19, 428259), (39, 208639), (57, 142753), (79, 102999), (139, 58539), (237, 34333), (247, 32943), (417, 19513), (741, 10981), (1027, 7923), (1501, 5421), (1807, 4503), (2641, 3081)]