21407554

素因数分解:

$2^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{6857}}^1$

素因数の和:7089

約数の個数: 16

約数和(自身を含む): 36868608

約数和(自身を除く): 15461054

約数列:

[1, 2, 7, 14, 223, 446, 1561, 3122, 6857, 13714, 47999, 95998, 1529111, 3058222, 10703777, 21407554]

約数ペア:

[(1, 21407554), (2, 10703777), (7, 3058222), (14, 1529111), (223, 95998), (446, 47999), (1561, 13714), (3122, 6857)]