20145958

素因数分解:

$2^1\times 7^2\times {\mathrm{311}}^1\times {\mathrm{661}}^1$

素因数の和:988

約数の個数: 24

約数和(自身を含む): 35319024

約数和(自身を除く): 15173066

約数列:

[1, 2, 7, 14, 49, 98, 311, 622, 661, 1322, 2177, 4354, 4627, 9254, 15239, 30478, 32389, 64778, 205571, 411142, 1438997, 2877994, 10072979, 20145958]

約数ペア:

[(1, 20145958), (2, 10072979), (7, 2877994), (14, 1438997), (49, 411142), (98, 205571), (311, 64778), (622, 32389), (661, 30478), (1322, 15239), (2177, 9254), (4354, 4627)]