19943252

素因数分解:

$2^2\times 7^1\times {\mathrm{389}}^1\times {\mathrm{1831}}^1$

素因数の和:2231

約数の個数: 24

約数和(自身を含む): 40010880

約数和(自身を除く): 20067628

約数列:

[1, 2, 4, 7, 14, 28, 389, 778, 1556, 1831, 2723, 3662, 5446, 7324, 10892, 12817, 25634, 51268, 712259, 1424518, 2849036, 4985813, 9971626, 19943252]

約数ペア:

[(1, 19943252), (2, 9971626), (4, 4985813), (7, 2849036), (14, 1424518), (28, 712259), (389, 51268), (778, 25634), (1556, 12817), (1831, 10892), (2723, 7324), (3662, 5446)]