9988881

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{3631}}^1$

素因数の和:3772

約数の個数: 16

約数和(自身を含む): 15341568

約数和(自身を除く): 5352687

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 3631, 10893, 25417, 76251, 475661, 1426983, 3329627, 9988881]

約数ペア:

[(1, 9988881), (3, 3329627), (7, 1426983), (21, 475661), (131, 76251), (393, 25417), (917, 10893), (2751, 3631)]