21123420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{352057}}^1$

素因数の和:352069

約数の個数: 24

約数和(自身を含む): 59145744

約数和(自身を除く): 38022324

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 352057, 704114, 1056171, 1408228, 1760285, 2112342, 3520570, 4224684, 5280855, 7041140, 10561710, 21123420]

約数ペア:

[(1, 21123420), (2, 10561710), (3, 7041140), (4, 5280855), (5, 4224684), (6, 3520570), (10, 2112342), (12, 1760285), (15, 1408228), (20, 1056171), (30, 704114), (60, 352057)]