20338437

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{15877}}^1$

素因数の和:15948

約数の個数: 16

約数和(自身を含む): 31501952

約数和(自身を除く): 11163515

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 15877, 47631, 111139, 333417, 968497, 2905491, 6779479, 20338437]

約数ペア:

[(1, 20338437), (3, 6779479), (7, 2905491), (21, 968497), (61, 333417), (183, 111139), (427, 47631), (1281, 15877)]