20491163

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{5431}}^1$

素因数の和:5463

約数の個数: 16

約数和(自身を含む): 26073600

約数和(自身を除く): 5582437

約数列:

[1, 7, 11, 49, 77, 343, 539, 3773, 5431, 38017, 59741, 266119, 418187, 1862833, 2927309, 20491163]

約数ペア:

[(1, 20491163), (7, 2927309), (11, 1862833), (49, 418187), (77, 266119), (343, 59741), (539, 38017), (3773, 5431)]