28221655

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73303}}^1$

素因数の和:73326

約数の個数: 16

約数和(自身を含む): 42223104

約数和(自身を除く): 14001449

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 73303, 366515, 513121, 806333, 2565605, 4031665, 5644331, 28221655]

約数ペア:

[(1, 28221655), (5, 5644331), (7, 4031665), (11, 2565605), (35, 806333), (55, 513121), (77, 366515), (385, 73303)]