20116789

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 26966016

約数和(自身を除く): 6849227

約数列:

[1, 7, 11, 23, 37, 77, 161, 253, 259, 307, 407, 851, 1771, 2149, 2849, 3377, 5957, 7061, 9361, 11359, 23639, 49427, 65527, 77671, 79513, 124949, 261257, 543697, 874643, 1828799, 2873827, 20116789]

約数ペア:

[(1, 20116789), (7, 2873827), (11, 1828799), (23, 874643), (37, 543697), (77, 261257), (161, 124949), (253, 79513), (259, 77671), (307, 65527), (407, 49427), (851, 23639), (1771, 11359), (2149, 9361), (2849, 7061), (3377, 5957)]