18991636

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{1621}}^1$

素因数の和:1755

約数の個数: 24

約数和(自身を含む): 34743240

約数和(自身を除く): 15751604

約数列:

[1, 2, 4, 29, 58, 101, 116, 202, 404, 1621, 2929, 3242, 5858, 6484, 11716, 47009, 94018, 163721, 188036, 327442, 654884, 4747909, 9495818, 18991636]

約数ペア:

[(1, 18991636), (2, 9495818), (4, 4747909), (29, 654884), (58, 327442), (101, 188036), (116, 163721), (202, 94018), (404, 47009), (1621, 11716), (2929, 6484), (3242, 5858)]