281640723

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{881}}^1\times {\mathrm{1171}}^1$

素因数の和:2075

約数の個数: 32

約数和(自身を含む): 463099392

約数和(自身を除く): 181458669

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 881, 1171, 2643, 3513, 6167, 8197, 11453, 15223, 18501, 24591, 34359, 45669, 80171, 106561, 240513, 319683, 1031651, 3094953, 7221557, 13411463, 21664671, 40234389, 93880241, 281640723]

約数ペア:

[(1, 281640723), (3, 93880241), (7, 40234389), (13, 21664671), (21, 13411463), (39, 7221557), (91, 3094953), (273, 1031651), (881, 319683), (1171, 240513), (2643, 106561), (3513, 80171), (6167, 45669), (8197, 34359), (11453, 24591), (15223, 18501)]