19975604

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{453991}}^1$

素因数の和:454006

約数の個数: 12

約数和(自身を含む): 38135328

約数和(自身を除く): 18159724

約数列:

[1, 2, 4, 11, 22, 44, 453991, 907982, 1815964, 4993901, 9987802, 19975604]

約数ペア:

[(1, 19975604), (2, 9987802), (4, 4993901), (11, 1815964), (22, 907982), (44, 453991)]