20403774559

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{491}}^1\times {\mathrm{258109}}^1$

素因数の和:258630

約数の個数: 16

約数和(自身を含む): 24382103040

約数和(自身を除く): 3978328481

約数列:

[1, 7, 23, 161, 491, 3437, 11293, 79051, 258109, 1806763, 5936507, 41555549, 126731519, 887120633, 2914824937, 20403774559]

約数ペア:

[(1, 20403774559), (7, 2914824937), (23, 887120633), (161, 126731519), (491, 41555549), (3437, 5936507), (11293, 1806763), (79051, 258109)]