20405918397

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{16763}}^1\times {\mathrm{23869}}^1$

素因数の和:40652

約数の個数: 16

約数和(自身を含む): 28811280960

約数和(自身を除く): 8405362563

約数列:

[1, 3, 17, 51, 16763, 23869, 50289, 71607, 284971, 405773, 854913, 1217319, 400116047, 1200348141, 6801972799, 20405918397]

約数ペア:

[(1, 20405918397), (3, 6801972799), (17, 1200348141), (51, 400116047), (16763, 1217319), (23869, 854913), (50289, 405773), (71607, 284971)]