81328247

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{719}}^1$

素因数の和:863

約数の個数: 32

約数和(自身を含む): 110315520

約数和(自身を除く): 28987273

約数列:

[1, 7, 11, 13, 77, 91, 113, 143, 719, 791, 1001, 1243, 1469, 5033, 7909, 8701, 9347, 10283, 16159, 55363, 65429, 81247, 102817, 113113, 568729, 719719, 893717, 1056211, 6256019, 7393477, 11618321, 81328247]

約数ペア:

[(1, 81328247), (7, 11618321), (11, 7393477), (13, 6256019), (77, 1056211), (91, 893717), (113, 719719), (143, 568729), (719, 113113), (791, 102817), (1001, 81247), (1243, 65429), (1469, 55363), (5033, 16159), (7909, 10283), (8701, 9347)]