131121331

素因数分解:

${\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1\times {\mathrm{1103}}^1$

素因数の和:1322

約数の個数: 16

約数和(自身を含む): 145939968

約数和(自身を除く): 14818637

約数列:

[1, 11, 101, 107, 1103, 1111, 1177, 10807, 12133, 111403, 118021, 118877, 1225433, 1298231, 11920121, 131121331]

約数ペア:

[(1, 131121331), (11, 11920121), (101, 1298231), (107, 1225433), (1103, 118877), (1111, 118021), (1177, 111403), (10807, 12133)]