18987050

素因数分解:

$2^1\times 5^2\times {\mathrm{433}}^1\times {\mathrm{877}}^1$

素因数の和:1322

約数の個数: 24

約数和(自身を含む): 35437836

約数和(自身を除く): 16450786

約数列:

[1, 2, 5, 10, 25, 50, 433, 866, 877, 1754, 2165, 4330, 4385, 8770, 10825, 21650, 21925, 43850, 379741, 759482, 1898705, 3797410, 9493525, 18987050]

約数ペア:

[(1, 18987050), (2, 9493525), (5, 3797410), (10, 1898705), (25, 759482), (50, 379741), (433, 43850), (866, 21925), (877, 21650), (1754, 10825), (2165, 8770), (4330, 4385)]