21681946

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1613}}^1$

素因数の和:1686

約数の個数: 32

約数和(自身を含む): 39045888

約数和(自身を除く): 17363942

約数列:

[1, 2, 11, 13, 22, 26, 47, 94, 143, 286, 517, 611, 1034, 1222, 1613, 3226, 6721, 13442, 17743, 20969, 35486, 41938, 75811, 151622, 230659, 461318, 833921, 985543, 1667842, 1971086, 10840973, 21681946]

約数ペア:

[(1, 21681946), (2, 10840973), (11, 1971086), (13, 1667842), (22, 985543), (26, 833921), (47, 461318), (94, 230659), (143, 151622), (286, 75811), (517, 41938), (611, 35486), (1034, 20969), (1222, 17743), (1613, 13442), (3226, 6721)]