19666869

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{3343}}^1$

素因数の和:3436

約数の個数: 16

約数和(自身を含む): 27447552

約数和(自身を除く): 7780683

約数列:

[1, 3, 37, 53, 111, 159, 1961, 3343, 5883, 10029, 123691, 177179, 371073, 531537, 6555623, 19666869]

約数ペア:

[(1, 19666869), (3, 6555623), (37, 531537), (53, 371073), (111, 177179), (159, 123691), (1961, 10029), (3343, 5883)]