20156838

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{258421}}^1$

素因数の和:258439

約数の個数: 16

約数和(自身を含む): 43414896

約数和(自身を除く): 23258058

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 258421, 516842, 775263, 1550526, 3359473, 6718946, 10078419, 20156838]

約数ペア:

[(1, 20156838), (2, 10078419), (3, 6718946), (6, 3359473), (13, 1550526), (26, 775263), (39, 516842), (78, 258421)]