21572782

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1973}}^1$

素因数の和:2064

約数の個数: 32

約数和(自身を含む): 40932864

約数和(自身を除く): 19360082

約数列:

[1, 2, 7, 11, 14, 22, 71, 77, 142, 154, 497, 781, 994, 1562, 1973, 3946, 5467, 10934, 13811, 21703, 27622, 43406, 140083, 151921, 280166, 303842, 980581, 1540913, 1961162, 3081826, 10786391, 21572782]

約数ペア:

[(1, 21572782), (2, 10786391), (7, 3081826), (11, 1961162), (14, 1540913), (22, 980581), (71, 303842), (77, 280166), (142, 151921), (154, 140083), (497, 43406), (781, 27622), (994, 21703), (1562, 13811), (1973, 10934), (3946, 5467)]