20741072

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{617}}^1$

素因数の和:827

約数の個数: 40

約数和(自身を含む): 44140032

約数和(自身を除く): 23398960

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 191, 382, 617, 764, 1234, 1528, 2101, 2468, 3056, 4202, 4936, 6787, 8404, 9872, 13574, 16808, 27148, 33616, 54296, 108592, 117847, 235694, 471388, 942776, 1296317, 1885552, 2592634, 5185268, 10370536, 20741072]

約数ペア:

[(1, 20741072), (2, 10370536), (4, 5185268), (8, 2592634), (11, 1885552), (16, 1296317), (22, 942776), (44, 471388), (88, 235694), (176, 117847), (191, 108592), (382, 54296), (617, 33616), (764, 27148), (1234, 16808), (1528, 13574), (2101, 9872), (2468, 8404), (3056, 6787), (4202, 4936)]