21340638

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{971}}^1$

素因数の和:1030

約数の個数: 64

約数和(自身を含む): 53187840

約数和(自身を除く): 31847202

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 37, 54, 66, 74, 99, 111, 198, 222, 297, 333, 407, 594, 666, 814, 971, 999, 1221, 1942, 1998, 2442, 2913, 3663, 5826, 7326, 8739, 10681, 10989, 17478, 21362, 21978, 26217, 32043, 35927, 52434, 64086, 71854, 96129, 107781, 192258, 215562, 288387, 323343, 395197, 576774, 646686, 790394, 970029, 1185591, 1940058, 2371182, 3556773, 7113546, 10670319, 21340638]

約数ペア:

[(1, 21340638), (2, 10670319), (3, 7113546), (6, 3556773), (9, 2371182), (11, 1940058), (18, 1185591), (22, 970029), (27, 790394), (33, 646686), (37, 576774), (54, 395197), (66, 323343), (74, 288387), (99, 215562), (111, 192258), (198, 107781), (222, 96129), (297, 71854), (333, 64086), (407, 52434), (594, 35927), (666, 32043), (814, 26217), (971, 21978), (999, 21362), (1221, 17478), (1942, 10989), (1998, 10681), (2442, 8739), (2913, 7326), (3663, 5826)]