20789516

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{20543}}^1$

素因数の和:20581

約数の個数: 24

約数和(自身を含む): 41416704

約数和(自身を除く): 20627188

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 20543, 41086, 82172, 225973, 451946, 472489, 903892, 944978, 1889956, 5197379, 10394758, 20789516]

約数ペア:

[(1, 20789516), (2, 10394758), (4, 5197379), (11, 1889956), (22, 944978), (23, 903892), (44, 472489), (46, 451946), (92, 225973), (253, 82172), (506, 41086), (1012, 20543)]