20938744

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{557}}^1$

素因数の和:727

約数の個数: 32

約数和(自身を含む): 40711680

約数和(自身を除く): 19772936

約数列:

[1, 2, 4, 8, 37, 74, 127, 148, 254, 296, 508, 557, 1016, 1114, 2228, 4456, 4699, 9398, 18796, 20609, 37592, 41218, 70739, 82436, 141478, 164872, 282956, 565912, 2617343, 5234686, 10469372, 20938744]

約数ペア:

[(1, 20938744), (2, 10469372), (4, 5234686), (8, 2617343), (37, 565912), (74, 282956), (127, 164872), (148, 141478), (254, 82436), (296, 70739), (508, 41218), (557, 37592), (1016, 20609), (1114, 18796), (2228, 9398), (4456, 4699)]