21300976

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1709}}^1$

素因数の和:1777

約数の個数: 40

約数和(自身を含む): 44528400

約数和(自身を除く): 23227424

約数列:

[1, 2, 4, 8, 16, 19, 38, 41, 76, 82, 152, 164, 304, 328, 656, 779, 1558, 1709, 3116, 3418, 6232, 6836, 12464, 13672, 27344, 32471, 64942, 70069, 129884, 140138, 259768, 280276, 519536, 560552, 1121104, 1331311, 2662622, 5325244, 10650488, 21300976]

約数ペア:

[(1, 21300976), (2, 10650488), (4, 5325244), (8, 2662622), (16, 1331311), (19, 1121104), (38, 560552), (41, 519536), (76, 280276), (82, 259768), (152, 140138), (164, 129884), (304, 70069), (328, 64942), (656, 32471), (779, 27344), (1558, 13672), (1709, 12464), (3116, 6836), (3418, 6232)]