81351613

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1601}}^1$

素因数の和:1693

約数の個数: 24

約数和(自身を含む): 101906424

約数和(自身を除く): 20554811

約数列:

[1, 7, 17, 49, 61, 119, 427, 833, 1037, 1601, 2989, 7259, 11207, 27217, 50813, 78449, 97661, 190519, 683627, 1333633, 1660237, 4785389, 11621659, 81351613]

約数ペア:

[(1, 81351613), (7, 11621659), (17, 4785389), (49, 1660237), (61, 1333633), (119, 683627), (427, 190519), (833, 97661), (1037, 78449), (1601, 50813), (2989, 27217), (7259, 11207)]