19891036

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{2707}}^1$

素因数の和:2889

約数の個数: 24

約数和(自身を含む): 38215296

約数和(自身を除く): 18324260

約数列:

[1, 2, 4, 11, 22, 44, 167, 334, 668, 1837, 2707, 3674, 5414, 7348, 10828, 29777, 59554, 119108, 452069, 904138, 1808276, 4972759, 9945518, 19891036]

約数ペア:

[(1, 19891036), (2, 9945518), (4, 4972759), (11, 1808276), (22, 904138), (44, 452069), (167, 119108), (334, 59554), (668, 29777), (1837, 10828), (2707, 7348), (3674, 5414)]