20859951

素因数分解:

$3^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{3001}}^1$

素因数の和:3342

約数の個数: 16

約数和(自身を含む): 31893248

約数和(自身を除く): 11033297

約数列:

[1, 3, 7, 21, 331, 993, 2317, 3001, 6951, 9003, 21007, 63021, 993331, 2979993, 6953317, 20859951]

約数ペア:

[(1, 20859951), (3, 6953317), (7, 2979993), (21, 993331), (331, 63021), (993, 21007), (2317, 9003), (3001, 6951)]