20989496

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{1741}}^1$

素因数の和:1895

約数の個数: 32

約数和(自身を含む): 43271280

約数和(自身を除く): 22281784

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 137, 274, 548, 1096, 1507, 1741, 3014, 3482, 6028, 6964, 12056, 13928, 19151, 38302, 76604, 153208, 238517, 477034, 954068, 1908136, 2623687, 5247374, 10494748, 20989496]

約数ペア:

[(1, 20989496), (2, 10494748), (4, 5247374), (8, 2623687), (11, 1908136), (22, 954068), (44, 477034), (88, 238517), (137, 153208), (274, 76604), (548, 38302), (1096, 19151), (1507, 13928), (1741, 12056), (3014, 6964), (3482, 6028)]