19724912

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{11969}}^1$

素因数の和:12080

約数の個数: 20

約数和(自身を含む): 38591280

約数和(自身を除く): 18866368

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 11969, 23938, 47876, 95752, 191504, 1232807, 2465614, 4931228, 9862456, 19724912]

約数ペア:

[(1, 19724912), (2, 9862456), (4, 4931228), (8, 2465614), (16, 1232807), (103, 191504), (206, 95752), (412, 47876), (824, 23938), (1648, 11969)]