21941980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37831}}^1$

素因数の和:37869

約数の個数: 24

約数和(自身を含む): 47668320

約数和(自身を除く): 25726340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 37831, 75662, 151324, 189155, 378310, 756620, 1097099, 2194198, 4388396, 5485495, 10970990, 21941980]

約数ペア:

[(1, 21941980), (2, 10970990), (4, 5485495), (5, 4388396), (10, 2194198), (20, 1097099), (29, 756620), (58, 378310), (116, 189155), (145, 151324), (290, 75662), (580, 37831)]