21687722

素因数分解:

$2^1\times 7^1\times {\mathrm{571}}^1\times {\mathrm{2713}}^1$

素因数の和:3293

約数の個数: 16

約数和(自身を含む): 37257792

約数和(自身を除く): 15570070

約数列:

[1, 2, 7, 14, 571, 1142, 2713, 3997, 5426, 7994, 18991, 37982, 1549123, 3098246, 10843861, 21687722]

約数ペア:

[(1, 21687722), (2, 10843861), (7, 3098246), (14, 1549123), (571, 37982), (1142, 18991), (2713, 7994), (3997, 5426)]