19711381

素因数分解:

${\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{331}}^1$

素因数の和:492

約数の個数: 16

約数和(自身を含む): 21800448

約数和(自身を除く): 2089067

約数列:

[1, 17, 31, 113, 331, 527, 1921, 3503, 5627, 10261, 37403, 59551, 174437, 635851, 1159493, 19711381]

約数ペア:

[(1, 19711381), (17, 1159493), (31, 635851), (113, 174437), (331, 59551), (527, 37403), (1921, 10261), (3503, 5627)]