21855557

素因数分解:

${\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:388

約数の個数: 16

約数和(自身を含む): 23887872

約数和(自身を除く): 2032315

約数列:

[1, 17, 53, 127, 191, 901, 2159, 3247, 6731, 10123, 24257, 114427, 172091, 412369, 1285621, 21855557]

約数ペア:

[(1, 21855557), (17, 1285621), (53, 412369), (127, 172091), (191, 114427), (901, 24257), (2159, 10123), (3247, 6731)]