21288608

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{307}}^1$

素因数の和:525

約数の個数: 48

約数和(自身を含む): 46103904

約数和(自身を除く): 24815296

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 176, 197, 307, 352, 394, 614, 788, 1228, 1576, 2167, 2456, 3152, 3377, 4334, 4912, 6304, 6754, 8668, 9824, 13508, 17336, 27016, 34672, 54032, 60479, 69344, 108064, 120958, 241916, 483832, 665269, 967664, 1330538, 1935328, 2661076, 5322152, 10644304, 21288608]

約数ペア:

[(1, 21288608), (2, 10644304), (4, 5322152), (8, 2661076), (11, 1935328), (16, 1330538), (22, 967664), (32, 665269), (44, 483832), (88, 241916), (176, 120958), (197, 108064), (307, 69344), (352, 60479), (394, 54032), (614, 34672), (788, 27016), (1228, 17336), (1576, 13508), (2167, 9824), (2456, 8668), (3152, 6754), (3377, 6304), (4334, 4912)]