19865846

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9923}}^1$

素因数の和:9956

約数の個数: 32

約数和(自身を含む): 40013568

約数和(自身を除く): 20147722

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 77, 91, 143, 154, 182, 286, 1001, 2002, 9923, 19846, 69461, 109153, 128999, 138922, 218306, 257998, 764071, 902993, 1418989, 1528142, 1805986, 2837978, 9932923, 19865846]

約数ペア:

[(1, 19865846), (2, 9932923), (7, 2837978), (11, 1805986), (13, 1528142), (14, 1418989), (22, 902993), (26, 764071), (77, 257998), (91, 218306), (143, 138922), (154, 128999), (182, 109153), (286, 69461), (1001, 19846), (2002, 9923)]