21564285

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{499}}^1$

素因数の和:617

約数の個数: 32

約数和(自身を含む): 35904000

約数和(自身を除く): 14339715

約数列:

[1, 3, 5, 15, 43, 67, 129, 201, 215, 335, 499, 645, 1005, 1497, 2495, 2881, 7485, 8643, 14405, 21457, 33433, 43215, 64371, 100299, 107285, 167165, 321855, 501495, 1437619, 4312857, 7188095, 21564285]

約数ペア:

[(1, 21564285), (3, 7188095), (5, 4312857), (15, 1437619), (43, 501495), (67, 321855), (129, 167165), (201, 107285), (215, 100299), (335, 64371), (499, 43215), (645, 33433), (1005, 21457), (1497, 14405), (2495, 8643), (2881, 7485)]