128556421

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{379}}^1\times {\mathrm{1031}}^1$

素因数の和:1464

約数の個数: 16

約数和(自身を含む): 150589440

約数和(自身を除く): 22033019

約数列:

[1, 7, 47, 329, 379, 1031, 2653, 7217, 17813, 48457, 124691, 339199, 390749, 2735243, 18365203, 128556421]

約数ペア:

[(1, 128556421), (7, 18365203), (47, 2735243), (329, 390749), (379, 339199), (1031, 124691), (2653, 48457), (7217, 17813)]