21565677

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{211}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 34299904

約数和(自身を除く): 12734227

約数列:

[1, 3, 7, 21, 31, 93, 157, 211, 217, 471, 633, 651, 1099, 1477, 3297, 4431, 4867, 6541, 14601, 19623, 33127, 34069, 45787, 99381, 102207, 137361, 231889, 695667, 1026937, 3080811, 7188559, 21565677]

約数ペア:

[(1, 21565677), (3, 7188559), (7, 3080811), (21, 1026937), (31, 695667), (93, 231889), (157, 137361), (211, 102207), (217, 99381), (471, 45787), (633, 34069), (651, 33127), (1099, 19623), (1477, 14601), (3297, 6541), (4431, 4867)]