20210958657

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{7770457}}^1$

素因数の和:7770497

約数の個数: 18

約数和(自身を含む): 31011897878

約数和(自身を除く): 10800939221

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 7770457, 23311371, 69934113, 132097769, 396293307, 1188879921, 2245662073, 6736986219, 20210958657]

約数ペア:

[(1, 20210958657), (3, 6736986219), (9, 2245662073), (17, 1188879921), (51, 396293307), (153, 132097769), (289, 69934113), (867, 23311371), (2601, 7770457)]