19156543

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2053}}^1$

素因数の和:2134

約数の個数: 16

約数和(自身を含む): 23136256

約数和(自身を除く): 3979713

約数列:

[1, 7, 31, 43, 217, 301, 1333, 2053, 9331, 14371, 63643, 88279, 445501, 617953, 2736649, 19156543]

約数ペア:

[(1, 19156543), (7, 2736649), (31, 617953), (43, 445501), (217, 88279), (301, 63643), (1333, 14371), (2053, 9331)]