21493864

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20201}}^1$

素因数の和:20233

約数の個数: 32

約数和(自身を含む): 48484800

約数和(自身を除く): 26990936

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 20201, 40402, 80804, 141407, 161608, 282814, 383819, 565628, 767638, 1131256, 1535276, 2686733, 3070552, 5373466, 10746932, 21493864]

約数ペア:

[(1, 21493864), (2, 10746932), (4, 5373466), (7, 3070552), (8, 2686733), (14, 1535276), (19, 1131256), (28, 767638), (38, 565628), (56, 383819), (76, 282814), (133, 161608), (152, 141407), (266, 80804), (532, 40402), (1064, 20201)]