21605344

素因数分解:

$2^5\times {\mathrm{53}}^1\times {\mathrm{12739}}^1$

素因数の和:12802

約数の個数: 24

約数和(自身を含む): 43341480

約数和(自身を除く): 21736136

約数列:

[1, 2, 4, 8, 16, 32, 53, 106, 212, 424, 848, 1696, 12739, 25478, 50956, 101912, 203824, 407648, 675167, 1350334, 2700668, 5401336, 10802672, 21605344]

約数ペア:

[(1, 21605344), (2, 10802672), (4, 5401336), (8, 2700668), (16, 1350334), (32, 675167), (53, 407648), (106, 203824), (212, 101912), (424, 50956), (848, 25478), (1696, 12739)]