15881204

素因数分解:

$2^2\times {\mathrm{401}}^1\times {\mathrm{9901}}^1$

素因数の和:10306

約数の個数: 12

約数和(自身を含む): 27864228

約数和(自身を除く): 11983024

約数列:

[1, 2, 4, 401, 802, 1604, 9901, 19802, 39604, 3970301, 7940602, 15881204]

約数ペア:

[(1, 15881204), (2, 7940602), (4, 3970301), (401, 39604), (802, 19802), (1604, 9901)]