21926487

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{211}}^1$

素因数の和:339

約数の個数: 32

約数和(自身を含む): 33214464

約数和(自身を除く): 11287977

約数列:

[1, 3, 11, 33, 47, 67, 141, 201, 211, 517, 633, 737, 1551, 2211, 2321, 3149, 6963, 9447, 9917, 14137, 29751, 34639, 42411, 103917, 109087, 155507, 327261, 466521, 664439, 1993317, 7308829, 21926487]

約数ペア:

[(1, 21926487), (3, 7308829), (11, 1993317), (33, 664439), (47, 466521), (67, 327261), (141, 155507), (201, 109087), (211, 103917), (517, 42411), (633, 34639), (737, 29751), (1551, 14137), (2211, 9917), (2321, 9447), (3149, 6963)]