17948871

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{3121}}^1$

素因数の和:3204

約数の個数: 20

約数和(自身を含む): 27198864

約数和(自身を除く): 9249993

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 3121, 5751, 9363, 28089, 84267, 221591, 252801, 664773, 1994319, 5982957, 17948871]

約数ペア:

[(1, 17948871), (3, 5982957), (9, 1994319), (27, 664773), (71, 252801), (81, 221591), (213, 84267), (639, 28089), (1917, 9363), (3121, 5751)]