19900489

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1879}}^1$

素因数の和:1992

約数の個数: 16

約数和(自身を含む): 24364800

約数和(自身を除く): 4464311

約数列:

[1, 7, 17, 89, 119, 623, 1513, 1879, 10591, 13153, 31943, 167231, 223601, 1170617, 2842927, 19900489]

約数ペア:

[(1, 19900489), (7, 2842927), (17, 1170617), (89, 223601), (119, 167231), (623, 31943), (1513, 13153), (1879, 10591)]