890990156

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{521657}}^1$

素因数の和:521729

約数の個数: 24

約数和(自身を含む): 1811196576

約数和(自身を除く): 920206420

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 521657, 1043314, 2086628, 3651599, 7303198, 14606396, 31821077, 63642154, 127284308, 222747539, 445495078, 890990156]

約数ペア:

[(1, 890990156), (2, 445495078), (4, 222747539), (7, 127284308), (14, 63642154), (28, 31821077), (61, 14606396), (122, 7303198), (244, 3651599), (427, 2086628), (854, 1043314), (1708, 521657)]