21048412

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1847}}^1$

素因数の和:1906

約数の個数: 48

約数和(自身を含む): 47190528

約数和(自身を除く): 26142116

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 37, 44, 74, 77, 148, 154, 259, 308, 407, 518, 814, 1036, 1628, 1847, 2849, 3694, 5698, 7388, 11396, 12929, 20317, 25858, 40634, 51716, 68339, 81268, 136678, 142219, 273356, 284438, 478373, 568876, 751729, 956746, 1503458, 1913492, 3006916, 5262103, 10524206, 21048412]

約数ペア:

[(1, 21048412), (2, 10524206), (4, 5262103), (7, 3006916), (11, 1913492), (14, 1503458), (22, 956746), (28, 751729), (37, 568876), (44, 478373), (74, 284438), (77, 273356), (148, 142219), (154, 136678), (259, 81268), (308, 68339), (407, 51716), (518, 40634), (814, 25858), (1036, 20317), (1628, 12929), (1847, 11396), (2849, 7388), (3694, 5698)]