21335426

素因数分解:

$2^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{4021}}^1$

素因数の和:4409

約数の個数: 16

約数和(自身を含む): 36680640

約数和(自身を除く): 15345214

約数列:

[1, 2, 7, 14, 379, 758, 2653, 4021, 5306, 8042, 28147, 56294, 1523959, 3047918, 10667713, 21335426]

約数ペア:

[(1, 21335426), (2, 10667713), (7, 3047918), (14, 1523959), (379, 56294), (758, 28147), (2653, 8042), (4021, 5306)]