81019211

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{997}}^1$

素因数の和:1083

約数の個数: 32

約数和(自身を含む): 107304960

約数和(自身を除く): 26285749

約数列:

[1, 7, 13, 19, 47, 91, 133, 247, 329, 611, 893, 997, 1729, 4277, 6251, 6979, 11609, 12961, 18943, 46859, 81263, 90727, 132601, 246259, 328013, 609167, 890321, 1723813, 4264169, 6232247, 11574173, 81019211]

約数ペア:

[(1, 81019211), (7, 11574173), (13, 6232247), (19, 4264169), (47, 1723813), (91, 890321), (133, 609167), (247, 328013), (329, 246259), (611, 132601), (893, 90727), (997, 81263), (1729, 46859), (4277, 18943), (6251, 12961), (6979, 11609)]