21801544

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{293}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 41912640

約数和(自身を除く): 20111096

約数列:

[1, 2, 4, 8, 71, 131, 142, 262, 284, 293, 524, 568, 586, 1048, 1172, 2344, 9301, 18602, 20803, 37204, 38383, 41606, 74408, 76766, 83212, 153532, 166424, 307064, 2725193, 5450386, 10900772, 21801544]

約数ペア:

[(1, 21801544), (2, 10900772), (4, 5450386), (8, 2725193), (71, 307064), (131, 166424), (142, 153532), (262, 83212), (284, 76766), (293, 74408), (524, 41606), (568, 38383), (586, 37204), (1048, 20803), (1172, 18602), (2344, 9301)]