21280850

素因数分解:

$2^1\times 5^2\times {\mathrm{379}}^1\times {\mathrm{1123}}^1$

素因数の和:1514

約数の個数: 24

約数和(自身を含む): 39722160

約数和(自身を除く): 18441310

約数列:

[1, 2, 5, 10, 25, 50, 379, 758, 1123, 1895, 2246, 3790, 5615, 9475, 11230, 18950, 28075, 56150, 425617, 851234, 2128085, 4256170, 10640425, 21280850]

約数ペア:

[(1, 21280850), (2, 10640425), (5, 4256170), (10, 2128085), (25, 851234), (50, 425617), (379, 56150), (758, 28075), (1123, 18950), (1895, 11230), (2246, 9475), (3790, 5615)]