21772828

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{317}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 47867904

約数和(自身を除く): 26095076

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 223, 308, 317, 446, 634, 892, 1268, 1561, 2219, 2453, 3122, 3487, 4438, 4906, 6244, 6974, 8876, 9812, 13948, 17171, 24409, 34342, 48818, 68684, 70691, 97636, 141382, 282764, 494837, 777601, 989674, 1555202, 1979348, 3110404, 5443207, 10886414, 21772828]

約数ペア:

[(1, 21772828), (2, 10886414), (4, 5443207), (7, 3110404), (11, 1979348), (14, 1555202), (22, 989674), (28, 777601), (44, 494837), (77, 282764), (154, 141382), (223, 97636), (308, 70691), (317, 68684), (446, 48818), (634, 34342), (892, 24409), (1268, 17171), (1561, 13948), (2219, 9812), (2453, 8876), (3122, 6974), (3487, 6244), (4438, 4906)]