19919774

素因数分解:

$2^1\times 7^2\times {\mathrm{181}}^1\times {\mathrm{1123}}^1$

素因数の和:1320

約数の個数: 24

約数和(自身を含む): 34981128

約数和(自身を除く): 15061354

約数列:

[1, 2, 7, 14, 49, 98, 181, 362, 1123, 1267, 2246, 2534, 7861, 8869, 15722, 17738, 55027, 110054, 203263, 406526, 1422841, 2845682, 9959887, 19919774]

約数ペア:

[(1, 19919774), (2, 9959887), (7, 2845682), (14, 1422841), (49, 406526), (98, 203263), (181, 110054), (362, 55027), (1123, 17738), (1267, 15722), (2246, 8869), (2534, 7861)]