21083975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1783}}^1$

素因数の和:1847

約数の個数: 24

約数和(自身を含む): 29200512

約数和(自身を除く): 8116537

約数列:

[1, 5, 11, 25, 43, 55, 215, 275, 473, 1075, 1783, 2365, 8915, 11825, 19613, 44575, 76669, 98065, 383345, 490325, 843359, 1916725, 4216795, 21083975]

約数ペア:

[(1, 21083975), (5, 4216795), (11, 1916725), (25, 843359), (43, 490325), (55, 383345), (215, 98065), (275, 76669), (473, 44575), (1075, 19613), (1783, 11825), (2365, 8915)]