20752893

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 36516480

約数和(自身を除く): 15763587

約数列:

[1, 3, 7, 9, 21, 29, 37, 63, 87, 111, 203, 259, 261, 307, 333, 609, 777, 921, 1073, 1827, 2149, 2331, 2763, 3219, 6447, 7511, 8903, 9657, 11359, 19341, 22533, 26709, 34077, 62321, 67599, 79513, 80127, 102231, 186963, 238539, 329411, 560889, 715617, 988233, 2305877, 2964699, 6917631, 20752893]

約数ペア:

[(1, 20752893), (3, 6917631), (7, 2964699), (9, 2305877), (21, 988233), (29, 715617), (37, 560889), (63, 329411), (87, 238539), (111, 186963), (203, 102231), (259, 80127), (261, 79513), (307, 67599), (333, 62321), (609, 34077), (777, 26709), (921, 22533), (1073, 19341), (1827, 11359), (2149, 9657), (2331, 8903), (2763, 7511), (3219, 6447)]