19899224

素因数分解:

$2^3\times {\mathrm{401}}^1\times {\mathrm{6203}}^1$

素因数の和:6610

約数の個数: 16

約数和(自身を含む): 37410120

約数和(自身を除く): 17510896

約数列:

[1, 2, 4, 8, 401, 802, 1604, 3208, 6203, 12406, 24812, 49624, 2487403, 4974806, 9949612, 19899224]

約数ペア:

[(1, 19899224), (2, 9949612), (4, 4974806), (8, 2487403), (401, 49624), (802, 24812), (1604, 12406), (3208, 6203)]