21000455248

素因数分解:

$2^4\times {\mathrm{130769}}^1\times {\mathrm{10037}}^1$

素因数の和:140814

約数の個数: 20

約数和(自身を含む): 40692747060

約数和(自身を除く): 19692291812

約数列:

[1, 2, 4, 8, 16, 10037, 20074, 40148, 80296, 130769, 160592, 261538, 523076, 1046152, 2092304, 1312528453, 2625056906, 5250113812, 10500227624, 21000455248]

約数ペア:

[(1, 21000455248), (2, 10500227624), (4, 5250113812), (8, 2625056906), (16, 1312528453), (10037, 2092304), (20074, 1046152), (40148, 523076), (80296, 261538), (130769, 160592)]