28001897

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{11731}}^1$

素因数の和:11780

約数の個数: 16

約数和(自身を含む): 36040704

約数和(自身を除く): 8038807

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 11731, 82117, 129041, 363661, 903287, 2545627, 4000271, 28001897]

約数ペア:

[(1, 28001897), (7, 4000271), (11, 2545627), (31, 903287), (77, 363661), (217, 129041), (341, 82117), (2387, 11731)]