21859156

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{463}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 44432640

約数和(自身を除く): 22573484

約数列:

[1, 2, 4, 11, 22, 29, 37, 44, 58, 74, 116, 148, 319, 407, 463, 638, 814, 926, 1073, 1276, 1628, 1852, 2146, 4292, 5093, 10186, 11803, 13427, 17131, 20372, 23606, 26854, 34262, 47212, 53708, 68524, 147697, 188441, 295394, 376882, 496799, 590788, 753764, 993598, 1987196, 5464789, 10929578, 21859156]

約数ペア:

[(1, 21859156), (2, 10929578), (4, 5464789), (11, 1987196), (22, 993598), (29, 753764), (37, 590788), (44, 496799), (58, 376882), (74, 295394), (116, 188441), (148, 147697), (319, 68524), (407, 53708), (463, 47212), (638, 34262), (814, 26854), (926, 23606), (1073, 20372), (1276, 17131), (1628, 13427), (1852, 11803), (2146, 10186), (4292, 5093)]