208488007

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{3259}}^1$

素因数の和:3335

約数の個数: 32

約数和(自身を含む): 277491200

約数和(自身を除く): 69003193

約数列:

[1, 7, 13, 19, 37, 91, 133, 247, 259, 481, 703, 1729, 3259, 3367, 4921, 9139, 22813, 42367, 61921, 63973, 120583, 296569, 433447, 804973, 844081, 1567579, 2291077, 5634811, 10973053, 16037539, 29784001, 208488007]

約数ペア:

[(1, 208488007), (7, 29784001), (13, 16037539), (19, 10973053), (37, 5634811), (91, 2291077), (133, 1567579), (247, 844081), (259, 804973), (481, 433447), (703, 296569), (1729, 120583), (3259, 63973), (3367, 61921), (4921, 42367), (9139, 22813)]