81041051

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 108591840

約数和(自身を除く): 27550789

約数列:

[1, 7, 13, 29, 41, 49, 91, 107, 203, 287, 377, 533, 637, 749, 1189, 1391, 1421, 2009, 2639, 3103, 3731, 4387, 5243, 8323, 9737, 15457, 18473, 21721, 26117, 30709, 40339, 57031, 58261, 68159, 108199, 127223, 152047, 214963, 282373, 399217, 757393, 890561, 1653899, 1976611, 2794519, 6233927, 11577293, 81041051]

約数ペア:

[(1, 81041051), (7, 11577293), (13, 6233927), (29, 2794519), (41, 1976611), (49, 1653899), (91, 890561), (107, 757393), (203, 399217), (287, 282373), (377, 214963), (533, 152047), (637, 127223), (749, 108199), (1189, 68159), (1391, 58261), (1421, 57031), (2009, 40339), (2639, 30709), (3103, 26117), (3731, 21721), (4387, 18473), (5243, 15457), (8323, 9737)]