21548401

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{7873}}^1$

素因数の和:7920

約数の個数: 16

約数和(自身を含む): 27212544

約数和(自身を除く): 5664143

約数列:

[1, 7, 17, 23, 119, 161, 391, 2737, 7873, 55111, 133841, 181079, 936887, 1267553, 3078343, 21548401]

約数ペア:

[(1, 21548401), (7, 3078343), (17, 1267553), (23, 936887), (119, 181079), (161, 133841), (391, 55111), (2737, 7873)]