19290579

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{61}}^1$

素因数の和:156

約数の個数: 48

約数和(自身を含む): 33497856

約数和(自身を除く): 14207277

約数列:

[1, 3, 7, 11, 21, 33, 37, 61, 77, 111, 183, 231, 259, 407, 427, 671, 777, 1221, 1281, 1369, 2013, 2257, 2849, 4107, 4697, 6771, 8547, 9583, 14091, 15059, 15799, 24827, 28749, 45177, 47397, 74481, 83509, 105413, 173789, 250527, 316239, 521367, 584563, 918599, 1753689, 2755797, 6430193, 19290579]

約数ペア:

[(1, 19290579), (3, 6430193), (7, 2755797), (11, 1753689), (21, 918599), (33, 584563), (37, 521367), (61, 316239), (77, 250527), (111, 173789), (183, 105413), (231, 83509), (259, 74481), (407, 47397), (427, 45177), (671, 28749), (777, 24827), (1221, 15799), (1281, 15059), (1369, 14091), (2013, 9583), (2257, 8547), (2849, 6771), (4107, 4697)]