21804476

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{1021}}^1$

素因数の和:1325

約数の個数: 24

約数和(自身を含む): 40348560

約数和(自身を除く): 18544084

約数列:

[1, 2, 4, 19, 38, 76, 281, 562, 1021, 1124, 2042, 4084, 5339, 10678, 19399, 21356, 38798, 77596, 286901, 573802, 1147604, 5451119, 10902238, 21804476]

約数ペア:

[(1, 21804476), (2, 10902238), (4, 5451119), (19, 1147604), (38, 573802), (76, 286901), (281, 77596), (562, 38798), (1021, 21356), (1124, 19399), (2042, 10678), (4084, 5339)]