28555984

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{21503}}^1$

素因数の和:21594

約数の個数: 20

約数和(自身を含む): 55996416

約数和(自身を除く): 27440432

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 21503, 43006, 86012, 172024, 344048, 1784749, 3569498, 7138996, 14277992, 28555984]

約数ペア:

[(1, 28555984), (2, 14277992), (4, 7138996), (8, 3569498), (16, 1784749), (83, 344048), (166, 172024), (332, 86012), (664, 43006), (1328, 21503)]