21038608

素因数分解:

$2^4\times {\mathrm{313}}^1\times {\mathrm{4201}}^1$

素因数の和:4522

約数の個数: 20

約数和(自身を含む): 40902268

約数和(自身を除く): 19863660

約数列:

[1, 2, 4, 8, 16, 313, 626, 1252, 2504, 4201, 5008, 8402, 16804, 33608, 67216, 1314913, 2629826, 5259652, 10519304, 21038608]

約数ペア:

[(1, 21038608), (2, 10519304), (4, 5259652), (8, 2629826), (16, 1314913), (313, 67216), (626, 33608), (1252, 16804), (2504, 8402), (4201, 5008)]