21161896

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19889}}^1$

素因数の和:19921

約数の個数: 32

約数和(自身を含む): 47736000

約数和(自身を除く): 26574104

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 19889, 39778, 79556, 139223, 159112, 278446, 377891, 556892, 755782, 1113784, 1511564, 2645237, 3023128, 5290474, 10580948, 21161896]

約数ペア:

[(1, 21161896), (2, 10580948), (4, 5290474), (7, 3023128), (8, 2645237), (14, 1511564), (19, 1113784), (28, 755782), (38, 556892), (56, 377891), (76, 278446), (133, 159112), (152, 139223), (266, 79556), (532, 39778), (1064, 19889)]