20992964

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{541}}^1$

素因数の和:743

約数の個数: 24

約数和(自身を含む): 37560600

約数和(自身を除く): 16567636

約数列:

[1, 2, 4, 89, 109, 178, 218, 356, 436, 541, 1082, 2164, 9701, 19402, 38804, 48149, 58969, 96298, 117938, 192596, 235876, 5248241, 10496482, 20992964]

約数ペア:

[(1, 20992964), (2, 10496482), (4, 5248241), (89, 235876), (109, 192596), (178, 117938), (218, 96298), (356, 58969), (436, 48149), (541, 38804), (1082, 19402), (2164, 9701)]