21129123554

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137202101}}^1$

素因数の和:137202121

約数の個数: 16

約数和(自身を含む): 39514205376

約数和(自身を除く): 18385081822

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 137202101, 274404202, 960414707, 1509223111, 1920829414, 3018446222, 10564561777, 21129123554]

約数ペア:

[(1, 21129123554), (2, 10564561777), (7, 3018446222), (11, 1920829414), (14, 1509223111), (22, 960414707), (77, 274404202), (154, 137202101)]