21038354

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1\times {\mathrm{653}}^1$

素因数の和:925

約数の個数: 16

約数和(自身を含む): 32137560

約数和(自身を除く): 11099206

約数列:

[1, 2, 89, 178, 181, 362, 653, 1306, 16109, 32218, 58117, 116234, 118193, 236386, 10519177, 21038354]

約数ペア:

[(1, 21038354), (2, 10519177), (89, 236386), (178, 118193), (181, 116234), (362, 58117), (653, 32218), (1306, 16109)]