19811660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90053}}^1$

素因数の和:90073

約数の個数: 24

約数和(自身を含む): 45387216

約数和(自身を除く): 25575556

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 90053, 180106, 360212, 450265, 900530, 990583, 1801060, 1981166, 3962332, 4952915, 9905830, 19811660]

約数ペア:

[(1, 19811660), (2, 9905830), (4, 4952915), (5, 3962332), (10, 1981166), (11, 1801060), (20, 990583), (22, 900530), (44, 450265), (55, 360212), (110, 180106), (220, 90053)]