21199419

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{787}}^1$

素因数の和:907

約数の個数: 24

約数和(自身を含む): 31838352

約数和(自身を除く): 10638933

約数列:

[1, 3, 9, 41, 73, 123, 219, 369, 657, 787, 2361, 2993, 7083, 8979, 26937, 32267, 57451, 96801, 172353, 290403, 517059, 2355491, 7066473, 21199419]

約数ペア:

[(1, 21199419), (3, 7066473), (9, 2355491), (41, 517059), (73, 290403), (123, 172353), (219, 96801), (369, 57451), (657, 32267), (787, 26937), (2361, 8979), (2993, 7083)]