20790044

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{5309}}^1$

素因数の和:5413

約数の個数: 24

約数和(自身を含む): 40143600

約数和(自身を除く): 19353556

約数列:

[1, 2, 4, 11, 22, 44, 89, 178, 356, 979, 1958, 3916, 5309, 10618, 21236, 58399, 116798, 233596, 472501, 945002, 1890004, 5197511, 10395022, 20790044]

約数ペア:

[(1, 20790044), (2, 10395022), (4, 5197511), (11, 1890004), (22, 945002), (44, 472501), (89, 233596), (178, 116798), (356, 58399), (979, 21236), (1958, 10618), (3916, 5309)]