81168703

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{509}}^1$

素因数の和:655

約数の個数: 32

約数和(自身を含む): 107712000

約数和(自身を除く): 26543297

約数列:

[1, 7, 11, 19, 77, 109, 133, 209, 509, 763, 1199, 1463, 2071, 3563, 5599, 8393, 9671, 14497, 22781, 39193, 55481, 67697, 106381, 159467, 388367, 610291, 744667, 1054139, 4272037, 7378973, 11595529, 81168703]

約数ペア:

[(1, 81168703), (7, 11595529), (11, 7378973), (19, 4272037), (77, 1054139), (109, 744667), (133, 610291), (209, 388367), (509, 159467), (763, 106381), (1199, 67697), (1463, 55481), (2071, 39193), (3563, 22781), (5599, 14497), (8393, 9671)]