21077841

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{5821}}^1$

素因数の和:5912

約数の個数: 16

約数和(自身を含む): 30181248

約数和(自身を除く): 9103407

約数列:

[1, 3, 17, 51, 71, 213, 1207, 3621, 5821, 17463, 98957, 296871, 413291, 1239873, 7025947, 21077841]

約数ペア:

[(1, 21077841), (3, 7025947), (17, 1239873), (51, 413291), (71, 296871), (213, 98957), (1207, 17463), (3621, 5821)]