21905422

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1381}}^1$

素因数の和:1504

約数の個数: 32

約数和(自身を含む): 41393664

約数和(自身を除く): 19488242

約数列:

[1, 2, 7, 11, 14, 22, 77, 103, 154, 206, 721, 1133, 1381, 1442, 2266, 2762, 7931, 9667, 15191, 15862, 19334, 30382, 106337, 142243, 212674, 284486, 995701, 1564673, 1991402, 3129346, 10952711, 21905422]

約数ペア:

[(1, 21905422), (2, 10952711), (7, 3129346), (11, 1991402), (14, 1564673), (22, 995701), (77, 284486), (103, 212674), (154, 142243), (206, 106337), (721, 30382), (1133, 19334), (1381, 15862), (1442, 15191), (2266, 9667), (2762, 7931)]