81392143

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{1039}}^1$

素因数の和:1115

約数の個数: 24

約数和(自身を含む): 101437440

約数和(自身を除く): 20045297

約数列:

[1, 7, 19, 31, 133, 217, 361, 589, 1039, 2527, 4123, 7273, 11191, 19741, 32209, 78337, 138187, 225463, 375079, 611971, 2625553, 4283797, 11627449, 81392143]

約数ペア:

[(1, 81392143), (7, 11627449), (19, 4283797), (31, 2625553), (133, 611971), (217, 375079), (361, 225463), (589, 138187), (1039, 78337), (2527, 32209), (4123, 19741), (7273, 11191)]