20321644

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{9187}}^1$

素因数の和:9277

約数の個数: 24

約数和(自身を含む): 41162240

約数和(自身を除く): 20840596

約数列:

[1, 2, 4, 7, 14, 28, 79, 158, 316, 553, 1106, 2212, 9187, 18374, 36748, 64309, 128618, 257236, 725773, 1451546, 2903092, 5080411, 10160822, 20321644]

約数ペア:

[(1, 20321644), (2, 10160822), (4, 5080411), (7, 2903092), (14, 1451546), (28, 725773), (79, 257236), (158, 128618), (316, 64309), (553, 36748), (1106, 18374), (2212, 9187)]