21090414

素因数分解:

$2^1\times 3^1\times {\mathrm{491}}^1\times {\mathrm{7159}}^1$

素因数の和:7655

約数の個数: 16

約数和(自身を含む): 42272640

約数和(自身を除く): 21182226

約数列:

[1, 2, 3, 6, 491, 982, 1473, 2946, 7159, 14318, 21477, 42954, 3515069, 7030138, 10545207, 21090414]

約数ペア:

[(1, 21090414), (2, 10545207), (3, 7030138), (6, 3515069), (491, 42954), (982, 21477), (1473, 14318), (2946, 7159)]