19872579

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{1213}}^1$

素因数の和:1386

約数の個数: 16

約数和(自身を含む): 27348992

約数和(自身を除く): 7476413

約数列:

[1, 3, 43, 127, 129, 381, 1213, 3639, 5461, 16383, 52159, 154051, 156477, 462153, 6624193, 19872579]

約数ペア:

[(1, 19872579), (3, 6624193), (43, 462153), (127, 156477), (129, 154051), (381, 52159), (1213, 16383), (3639, 5461)]