9901997

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{491}}^1$

素因数の和:608

約数の個数: 16

約数和(自身を含む): 11776512

約数和(自身を除く): 1874515

約数列:

[1, 7, 43, 67, 301, 469, 491, 2881, 3437, 20167, 21113, 32897, 147791, 230279, 1414571, 9901997]

約数ペア:

[(1, 9901997), (7, 1414571), (43, 230279), (67, 147791), (301, 32897), (469, 21113), (491, 20167), (2881, 3437)]