81284229

素因数分解:

$3^8\times {\mathrm{13}}^1\times {\mathrm{953}}^1$

素因数の和:990

約数の個数: 36

約数和(自身を含む): 131436396

約数和(自身を除く): 50152167

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 729, 953, 1053, 2187, 2859, 3159, 6561, 8577, 9477, 12389, 25731, 28431, 37167, 77193, 85293, 111501, 231579, 334503, 694737, 1003509, 2084211, 3010527, 6252633, 9031581, 27094743, 81284229]

約数ペア:

[(1, 81284229), (3, 27094743), (9, 9031581), (13, 6252633), (27, 3010527), (39, 2084211), (81, 1003509), (117, 694737), (243, 334503), (351, 231579), (729, 111501), (953, 85293), (1053, 77193), (2187, 37167), (2859, 28431), (3159, 25731), (6561, 12389), (8577, 9477)]