21957606

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2579}}^1$

素因数の和:2641

約数の個数: 48

約数和(自身を含む): 53127360

約数和(自身を除く): 31169754

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 43, 66, 86, 99, 129, 198, 258, 387, 473, 774, 946, 1419, 2579, 2838, 4257, 5158, 7737, 8514, 15474, 23211, 28369, 46422, 56738, 85107, 110897, 170214, 221794, 255321, 332691, 510642, 665382, 998073, 1219867, 1996146, 2439734, 3659601, 7319202, 10978803, 21957606]

約数ペア:

[(1, 21957606), (2, 10978803), (3, 7319202), (6, 3659601), (9, 2439734), (11, 1996146), (18, 1219867), (22, 998073), (33, 665382), (43, 510642), (66, 332691), (86, 255321), (99, 221794), (129, 170214), (198, 110897), (258, 85107), (387, 56738), (473, 46422), (774, 28369), (946, 23211), (1419, 15474), (2579, 8514), (2838, 7737), (4257, 5158)]