20810397

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{7699}}^1$

素因数の和:7772

約数の個数: 16

約数和(自身を含む): 29937600

約数和(自身を除く): 9127203

約数列:

[1, 3, 17, 51, 53, 159, 901, 2703, 7699, 23097, 130883, 392649, 408047, 1224141, 6936799, 20810397]

約数ペア:

[(1, 20810397), (3, 6936799), (17, 1224141), (51, 408047), (53, 392649), (159, 130883), (901, 23097), (2703, 7699)]