28121456

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{6947}}^1$

素因数の和:6989

約数の個数: 40

約数和(自身を含む): 62031744

約数和(自身を除く): 33910288

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 44, 46, 88, 92, 176, 184, 253, 368, 506, 1012, 2024, 4048, 6947, 13894, 27788, 55576, 76417, 111152, 152834, 159781, 305668, 319562, 611336, 639124, 1222672, 1278248, 1757591, 2556496, 3515182, 7030364, 14060728, 28121456]

約数ペア:

[(1, 28121456), (2, 14060728), (4, 7030364), (8, 3515182), (11, 2556496), (16, 1757591), (22, 1278248), (23, 1222672), (44, 639124), (46, 611336), (88, 319562), (92, 305668), (176, 159781), (184, 152834), (253, 111152), (368, 76417), (506, 55576), (1012, 27788), (2024, 13894), (4048, 6947)]