19806424

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{1301}}^1$

素因数の和:1491

約数の個数: 32

約数和(自身を含む): 40778640

約数和(自身を除く): 20972216

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 173, 346, 692, 1301, 1384, 1903, 2602, 3806, 5204, 7612, 10408, 14311, 15224, 28622, 57244, 114488, 225073, 450146, 900292, 1800584, 2475803, 4951606, 9903212, 19806424]

約数ペア:

[(1, 19806424), (2, 9903212), (4, 4951606), (8, 2475803), (11, 1800584), (22, 900292), (44, 450146), (88, 225073), (173, 114488), (346, 57244), (692, 28622), (1301, 15224), (1384, 14311), (1903, 10408), (2602, 7612), (3806, 5204)]