21104769

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1907}}^1$

素因数の和:1965

約数の個数: 32

約数和(自身を含む): 35168256

約数和(自身を除く): 14063487

約数列:

[1, 3, 7, 17, 21, 31, 51, 93, 119, 217, 357, 527, 651, 1581, 1907, 3689, 5721, 11067, 13349, 32419, 40047, 59117, 97257, 177351, 226933, 413819, 680799, 1004989, 1241457, 3014967, 7034923, 21104769]

約数ペア:

[(1, 21104769), (3, 7034923), (7, 3014967), (17, 1241457), (21, 1004989), (31, 680799), (51, 413819), (93, 226933), (119, 177351), (217, 97257), (357, 59117), (527, 40047), (651, 32419), (1581, 13349), (1907, 11067), (3689, 5721)]