21531752

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{797}}^1$

素因数の和:1121

約数の個数: 32

約数和(自身を含む): 44241120

約数和(自身を除く): 22709368

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 307, 614, 797, 1228, 1594, 2456, 3188, 3377, 6376, 6754, 8767, 13508, 17534, 27016, 35068, 70136, 244679, 489358, 978716, 1957432, 2691469, 5382938, 10765876, 21531752]

約数ペア:

[(1, 21531752), (2, 10765876), (4, 5382938), (8, 2691469), (11, 1957432), (22, 978716), (44, 489358), (88, 244679), (307, 70136), (614, 35068), (797, 27016), (1228, 17534), (1594, 13508), (2456, 8767), (3188, 6754), (3377, 6376)]