21113514

素因数分解:

$2^1\times 3^3\times {\mathrm{390991}}^1$

素因数の和:391002

約数の個数: 16

約数和(自身を含む): 46919040

約数和(自身を除く): 25805526

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 390991, 781982, 1172973, 2345946, 3518919, 7037838, 10556757, 21113514]

約数ペア:

[(1, 21113514), (2, 10556757), (3, 7037838), (6, 3518919), (9, 2345946), (18, 1172973), (27, 781982), (54, 390991)]