20904642

素因数分解:

$2^1\times 3^4\times {\mathrm{11}}^1\times {\mathrm{11731}}^1$

素因数の和:11756

約数の個数: 40

約数和(自身を含む): 51104592

約数和(自身を除く): 30199950

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 81, 99, 162, 198, 297, 594, 891, 1782, 11731, 23462, 35193, 70386, 105579, 129041, 211158, 258082, 316737, 387123, 633474, 774246, 950211, 1161369, 1900422, 2322738, 3484107, 6968214, 10452321, 20904642]

約数ペア:

[(1, 20904642), (2, 10452321), (3, 6968214), (6, 3484107), (9, 2322738), (11, 1900422), (18, 1161369), (22, 950211), (27, 774246), (33, 633474), (54, 387123), (66, 316737), (81, 258082), (99, 211158), (162, 129041), (198, 105579), (297, 70386), (594, 35193), (891, 23462), (1782, 11731)]