20649937

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:301

約数の個数: 32

約数和(自身を含む): 27353088

約数和(自身を除く): 6703151

約数列:

[1, 7, 11, 31, 41, 77, 211, 217, 287, 341, 451, 1271, 1477, 2321, 2387, 3157, 6541, 8651, 8897, 13981, 16247, 45787, 60557, 71951, 95161, 97867, 268181, 503657, 666127, 1877267, 2949991, 20649937]

約数ペア:

[(1, 20649937), (7, 2949991), (11, 1877267), (31, 666127), (41, 503657), (77, 268181), (211, 97867), (217, 95161), (287, 71951), (341, 60557), (451, 45787), (1271, 16247), (1477, 13981), (2321, 8897), (2387, 8651), (3157, 6541)]