16821916

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{569}}^1$

素因数の和:981

約数の個数: 24

約数和(自身を含む): 31122000

約数和(自身を除く): 14300084

約数列:

[1, 2, 4, 19, 38, 76, 389, 569, 778, 1138, 1556, 2276, 7391, 10811, 14782, 21622, 29564, 43244, 221341, 442682, 885364, 4205479, 8410958, 16821916]

約数ペア:

[(1, 16821916), (2, 8410958), (4, 4205479), (19, 885364), (38, 442682), (76, 221341), (389, 43244), (569, 29564), (778, 21622), (1138, 14782), (1556, 10811), (2276, 7391)]