28442458

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:354

約数の個数: 32

約数和(自身を含む): 47900160

約数和(自身を除く): 19457702

約数列:

[1, 2, 11, 22, 71, 131, 139, 142, 262, 278, 781, 1441, 1529, 1562, 2882, 3058, 9301, 9869, 18209, 18602, 19738, 36418, 102311, 108559, 200299, 204622, 217118, 400598, 1292839, 2585678, 14221229, 28442458]

約数ペア:

[(1, 28442458), (2, 14221229), (11, 2585678), (22, 1292839), (71, 400598), (131, 217118), (139, 204622), (142, 200299), (262, 108559), (278, 102311), (781, 36418), (1441, 19738), (1529, 18602), (1562, 18209), (2882, 9869), (3058, 9301)]