19890784

素因数分解:

$2^5\times {\mathrm{83}}^1\times {\mathrm{7489}}^1$

素因数の和:7582

約数の個数: 24

約数和(自身を含む): 39637080

約数和(自身を除く): 19746296

約数列:

[1, 2, 4, 8, 16, 32, 83, 166, 332, 664, 1328, 2656, 7489, 14978, 29956, 59912, 119824, 239648, 621587, 1243174, 2486348, 4972696, 9945392, 19890784]

約数ペア:

[(1, 19890784), (2, 9945392), (4, 4972696), (8, 2486348), (16, 1243174), (32, 621587), (83, 239648), (166, 119824), (332, 59912), (664, 29956), (1328, 14978), (2656, 7489)]