19740526

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{17657}}^1$

素因数の和:17715

約数の個数: 16

約数和(自身を含む): 32631984

約数和(自身を除く): 12891458

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 17657, 35314, 229541, 459082, 759251, 1518502, 9870263, 19740526]

約数ペア:

[(1, 19740526), (2, 9870263), (13, 1518502), (26, 759251), (43, 459082), (86, 229541), (559, 35314), (1118, 17657)]