19187815

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^2$

素因数の和:259

約数の個数: 24

約数和(自身を含む): 25900560

約数和(自身を除く): 6712745

約数列:

[1, 5, 17, 19, 85, 95, 109, 323, 545, 1615, 1853, 2071, 9265, 10355, 11881, 35207, 59405, 176035, 201977, 225739, 1009885, 1128695, 3837563, 19187815]

約数ペア:

[(1, 19187815), (5, 3837563), (17, 1128695), (19, 1009885), (85, 225739), (95, 201977), (109, 176035), (323, 59405), (545, 35207), (1615, 11881), (1853, 10355), (2071, 9265)]