20156271

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{7457}}^1$

素因数の和:7530

約数の個数: 16

約数和(自身を含む): 28996704

約数和(自身を除く): 8840433

約数列:

[1, 3, 17, 51, 53, 159, 901, 2703, 7457, 22371, 126769, 380307, 395221, 1185663, 6718757, 20156271]

約数ペア:

[(1, 20156271), (3, 6718757), (17, 1185663), (51, 395221), (53, 380307), (159, 126769), (901, 22371), (2703, 7457)]