20991062

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{419}}^1\times {\mathrm{677}}^1$

素因数の和:1135

約数の個数: 16

約数和(自身を含む): 32462640

約数和(自身を除く): 11471578

約数列:

[1, 2, 37, 74, 419, 677, 838, 1354, 15503, 25049, 31006, 50098, 283663, 567326, 10495531, 20991062]

約数ペア:

[(1, 20991062), (2, 10495531), (37, 567326), (74, 283663), (419, 50098), (677, 31006), (838, 25049), (1354, 15503)]