19199523

素因数分解:

$3^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{619}}^1$

素因数の和:847

約数の個数: 24

約数和(自身を含む): 29968320

約数和(自身を除く): 10768797

約数列:

[1, 3, 7, 21, 49, 147, 211, 619, 633, 1477, 1857, 4333, 4431, 10339, 12999, 30331, 31017, 90993, 130609, 391827, 914263, 2742789, 6399841, 19199523]

約数ペア:

[(1, 19199523), (3, 6399841), (7, 2742789), (21, 914263), (49, 391827), (147, 130609), (211, 90993), (619, 31017), (633, 30331), (1477, 12999), (1857, 10339), (4333, 4431)]