20644885

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{2729}}^1$

素因数の和:2840

約数の個数: 16

約数和(自身を含む): 26535600

約数和(自身を除く): 5890715

約数列:

[1, 5, 17, 85, 89, 445, 1513, 2729, 7565, 13645, 46393, 231965, 242881, 1214405, 4128977, 20644885]

約数ペア:

[(1, 20644885), (5, 4128977), (17, 1214405), (85, 242881), (89, 231965), (445, 46393), (1513, 13645), (2729, 7565)]