19797673

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:193

約数の個数: 32

約数和(自身を含む): 25318656

約数和(自身を除く): 5520983

約数列:

[1, 7, 17, 43, 53, 73, 119, 301, 371, 511, 731, 901, 1241, 2279, 3139, 3869, 5117, 6307, 8687, 15953, 21973, 27083, 38743, 53363, 65773, 166367, 271201, 373541, 460411, 1164569, 2828239, 19797673]

約数ペア:

[(1, 19797673), (7, 2828239), (17, 1164569), (43, 460411), (53, 373541), (73, 271201), (119, 166367), (301, 65773), (371, 53363), (511, 38743), (731, 27083), (901, 21973), (1241, 15953), (2279, 8687), (3139, 6307), (3869, 5117)]