19891204

素因数分解:

$2^2\times {\mathrm{401}}^1\times {\mathrm{12401}}^1$

素因数の和:12806

約数の個数: 12

約数和(自身を含む): 34899228

約数和(自身を除く): 15008024

約数列:

[1, 2, 4, 401, 802, 1604, 12401, 24802, 49604, 4972801, 9945602, 19891204]

約数ペア:

[(1, 19891204), (2, 9945602), (4, 4972801), (401, 49604), (802, 24802), (1604, 12401)]