81906957

素因数分解:

$3^4\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:232

約数の個数: 60

約数和(自身を含む): 137691708

約数和(自身を除く): 55784751

約数列:

[1, 3, 9, 11, 27, 33, 61, 81, 99, 121, 137, 183, 297, 363, 411, 549, 671, 891, 1089, 1233, 1507, 1647, 2013, 3267, 3699, 4521, 4941, 6039, 7381, 8357, 9801, 11097, 13563, 16577, 18117, 22143, 25071, 40689, 49731, 54351, 66429, 75213, 91927, 122067, 149193, 199287, 225639, 275781, 447579, 597861, 676917, 827343, 1011197, 1342737, 2482029, 3033591, 7446087, 9100773, 27302319, 81906957]

約数ペア:

[(1, 81906957), (3, 27302319), (9, 9100773), (11, 7446087), (27, 3033591), (33, 2482029), (61, 1342737), (81, 1011197), (99, 827343), (121, 676917), (137, 597861), (183, 447579), (297, 275781), (363, 225639), (411, 199287), (549, 149193), (671, 122067), (891, 91927), (1089, 75213), (1233, 66429), (1507, 54351), (1647, 49731), (2013, 40689), (3267, 25071), (3699, 22143), (4521, 18117), (4941, 16577), (6039, 13563), (7381, 11097), (8357, 9801)]