19923620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{23167}}^1$

素因数の和:23219

約数の個数: 24

約数和(自身を含む): 42814464

約数和(自身を除く): 22890844

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 23167, 46334, 92668, 115835, 231670, 463340, 996181, 1992362, 3984724, 4980905, 9961810, 19923620]

約数ペア:

[(1, 19923620), (2, 9961810), (4, 4980905), (5, 3984724), (10, 1992362), (20, 996181), (43, 463340), (86, 231670), (172, 115835), (215, 92668), (430, 46334), (860, 23167)]