19998076

素因数分解:

$2^2\times 7^2\times {\mathrm{102031}}^1$

素因数の和:102049

約数の個数: 18

約数和(自身を含む): 40710768

約数和(自身を除く): 20712692

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 102031, 204062, 408124, 714217, 1428434, 2856868, 4999519, 9999038, 19998076]

約数ペア:

[(1, 19998076), (2, 9999038), (4, 4999519), (7, 2856868), (14, 1428434), (28, 714217), (49, 408124), (98, 204062), (196, 102031)]