155990019

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{17431}}^1$

素因数の和:17610

約数の個数: 16

約数和(自身を含む): 220340480

約数和(自身を除く): 64350461

約数列:

[1, 3, 19, 57, 157, 471, 2983, 8949, 17431, 52293, 331189, 993567, 2736667, 8210001, 51996673, 155990019]

約数ペア:

[(1, 155990019), (3, 51996673), (19, 8210001), (57, 2736667), (157, 993567), (471, 331189), (2983, 52293), (8949, 17431)]