19819579

素因数分解:

${\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:390

約数の個数: 16

約数和(自身を含む): 21954240

約数和(自身を除く): 2134661

約数列:

[1, 13, 71, 109, 197, 923, 1417, 2561, 7739, 13987, 21473, 100607, 181831, 279149, 1524583, 19819579]

約数ペア:

[(1, 19819579), (13, 1524583), (71, 279149), (109, 181831), (197, 100607), (923, 21473), (1417, 13987), (2561, 7739)]