19920573

素因数分解:

$3^4\times {\mathrm{331}}^1\times {\mathrm{743}}^1$

素因数の和:1086

約数の個数: 20

約数和(自身を含む): 29887968

約数和(自身を除く): 9967395

約数列:

[1, 3, 9, 27, 81, 331, 743, 993, 2229, 2979, 6687, 8937, 20061, 26811, 60183, 245933, 737799, 2213397, 6640191, 19920573]

約数ペア:

[(1, 19920573), (3, 6640191), (9, 2213397), (27, 737799), (81, 245933), (331, 60183), (743, 26811), (993, 20061), (2229, 8937), (2979, 6687)]