20887854

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{953}}^1$

素因数の和:1252

約数の個数: 32

約数和(自身を含む): 45196704

約数和(自身を除く): 24308850

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 281, 562, 843, 953, 1686, 1906, 2859, 3653, 5718, 7306, 10959, 12389, 21918, 24778, 37167, 74334, 267793, 535586, 803379, 1606758, 3481309, 6962618, 10443927, 20887854]

約数ペア:

[(1, 20887854), (2, 10443927), (3, 6962618), (6, 3481309), (13, 1606758), (26, 803379), (39, 535586), (78, 267793), (281, 74334), (562, 37167), (843, 24778), (953, 21918), (1686, 12389), (1906, 10959), (2859, 7306), (3653, 5718)]