20812408

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{83921}}^1$

素因数の和:83958

約数の個数: 16

約数和(自身を含む): 40282560

約数和(自身を除く): 19470152

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 83921, 167842, 335684, 671368, 2601551, 5203102, 10406204, 20812408]

約数ペア:

[(1, 20812408), (2, 10406204), (4, 5203102), (8, 2601551), (31, 671368), (62, 335684), (124, 167842), (248, 83921)]