19778442

素因数分解:

$2^1\times 3^1\times {\mathrm{661}}^1\times {\mathrm{4987}}^1$

素因数の和:5653

約数の個数: 16

約数和(自身を含む): 39624672

約数和(自身を除く): 19846230

約数列:

[1, 2, 3, 6, 661, 1322, 1983, 3966, 4987, 9974, 14961, 29922, 3296407, 6592814, 9889221, 19778442]

約数ペア:

[(1, 19778442), (2, 9889221), (3, 6592814), (6, 3296407), (661, 29922), (1322, 14961), (1983, 9974), (3966, 4987)]