8306781

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:329

約数の個数: 32

約数和(自身を含む): 13516800

約数和(自身を除く): 5210019

約数列:

[1, 3, 7, 19, 21, 57, 109, 133, 191, 327, 399, 573, 763, 1337, 2071, 2289, 3629, 4011, 6213, 10887, 14497, 20819, 25403, 43491, 62457, 76209, 145733, 395561, 437199, 1186683, 2768927, 8306781]

約数ペア:

[(1, 8306781), (3, 2768927), (7, 1186683), (19, 437199), (21, 395561), (57, 145733), (109, 76209), (133, 62457), (191, 43491), (327, 25403), (399, 20819), (573, 14497), (763, 10887), (1337, 6213), (2071, 4011), (2289, 3629)]