19187812

素因数分解:

$2^2\times 7^2\times {\mathrm{223}}^1\times {\mathrm{439}}^1$

素因数の和:680

約数の個数: 36

約数和(自身を含む): 39325440

約数和(自身を除く): 20137628

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 223, 439, 446, 878, 892, 1561, 1756, 3073, 3122, 6146, 6244, 10927, 12292, 21511, 21854, 43022, 43708, 86044, 97897, 195794, 391588, 685279, 1370558, 2741116, 4796953, 9593906, 19187812]

約数ペア:

[(1, 19187812), (2, 9593906), (4, 4796953), (7, 2741116), (14, 1370558), (28, 685279), (49, 391588), (98, 195794), (196, 97897), (223, 86044), (439, 43708), (446, 43022), (878, 21854), (892, 21511), (1561, 12292), (1756, 10927), (3073, 6244), (3122, 6146)]