21359021915

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{607}}^1\times {\mathrm{91397}}^1$

素因数の和:92027

約数の個数: 32

約数和(自身を含む): 32008310784

約数和(自身を除く): 10649288869

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 607, 3035, 4249, 6677, 21245, 33385, 46739, 91397, 233695, 456985, 639779, 1005367, 3198895, 5026835, 7037569, 35187845, 55477979, 277389895, 388345853, 610257769, 1941729265, 3051288845, 4271804383, 21359021915]

約数ペア:

[(1, 21359021915), (5, 4271804383), (7, 3051288845), (11, 1941729265), (35, 610257769), (55, 388345853), (77, 277389895), (385, 55477979), (607, 35187845), (3035, 7037569), (4249, 5026835), (6677, 3198895), (21245, 1005367), (33385, 639779), (46739, 456985), (91397, 233695)]