21716548

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1061}}^1$

素因数の和:1132

約数の個数: 48

約数和(自身を含む): 47101824

約数和(自身を除く): 25385276

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 43, 68, 86, 119, 172, 238, 301, 476, 602, 731, 1061, 1204, 1462, 2122, 2924, 4244, 5117, 7427, 10234, 14854, 18037, 20468, 29708, 36074, 45623, 72148, 91246, 126259, 182492, 252518, 319361, 505036, 638722, 775591, 1277444, 1551182, 3102364, 5429137, 10858274, 21716548]

約数ペア:

[(1, 21716548), (2, 10858274), (4, 5429137), (7, 3102364), (14, 1551182), (17, 1277444), (28, 775591), (34, 638722), (43, 505036), (68, 319361), (86, 252518), (119, 182492), (172, 126259), (238, 91246), (301, 72148), (476, 45623), (602, 36074), (731, 29708), (1061, 20468), (1204, 18037), (1462, 14854), (2122, 10234), (2924, 7427), (4244, 5117)]