21045304

素因数分解:

$2^3\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1451}}^1$

素因数の和:1508

約数の個数: 48

約数和(自身を含む): 47175480

約数和(自身を除く): 26130176

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 49, 56, 74, 98, 148, 196, 259, 296, 392, 518, 1036, 1451, 1813, 2072, 2902, 3626, 5804, 7252, 10157, 11608, 14504, 20314, 40628, 53687, 71099, 81256, 107374, 142198, 214748, 284396, 375809, 429496, 568792, 751618, 1503236, 2630663, 3006472, 5261326, 10522652, 21045304]

約数ペア:

[(1, 21045304), (2, 10522652), (4, 5261326), (7, 3006472), (8, 2630663), (14, 1503236), (28, 751618), (37, 568792), (49, 429496), (56, 375809), (74, 284396), (98, 214748), (148, 142198), (196, 107374), (259, 81256), (296, 71099), (392, 53687), (518, 40628), (1036, 20314), (1451, 14504), (1813, 11608), (2072, 10157), (2902, 7252), (3626, 5804)]