21084835

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1\times {\mathrm{349}}^1$

素因数の和:678

約数の個数: 16

約数和(自身を含む): 26056800

約数和(自身を除く): 4971965

約数列:

[1, 5, 43, 215, 281, 349, 1405, 1745, 12083, 15007, 60415, 75035, 98069, 490345, 4216967, 21084835]

約数ペア:

[(1, 21084835), (5, 4216967), (43, 490345), (215, 98069), (281, 75035), (349, 60415), (1405, 15007), (1745, 12083)]