21004038

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2467}}^1$

素因数の和:2529

約数の個数: 48

約数和(自身を含む): 50821056

約数和(自身を除く): 29817018

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 43, 66, 86, 99, 129, 198, 258, 387, 473, 774, 946, 1419, 2467, 2838, 4257, 4934, 7401, 8514, 14802, 22203, 27137, 44406, 54274, 81411, 106081, 162822, 212162, 244233, 318243, 488466, 636486, 954729, 1166891, 1909458, 2333782, 3500673, 7001346, 10502019, 21004038]

約数ペア:

[(1, 21004038), (2, 10502019), (3, 7001346), (6, 3500673), (9, 2333782), (11, 1909458), (18, 1166891), (22, 954729), (33, 636486), (43, 488466), (66, 318243), (86, 244233), (99, 212162), (129, 162822), (198, 106081), (258, 81411), (387, 54274), (473, 44406), (774, 27137), (946, 22203), (1419, 14802), (2467, 8514), (2838, 7401), (4257, 4934)]