21091294

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{51949}}^1$

素因数の和:51987

約数の個数: 16

約数和(自身を含む): 37404000

約数和(自身を除く): 16312706

約数列:

[1, 2, 7, 14, 29, 58, 203, 406, 51949, 103898, 363643, 727286, 1506521, 3013042, 10545647, 21091294]

約数ペア:

[(1, 21091294), (2, 10545647), (7, 3013042), (14, 1506521), (29, 727286), (58, 363643), (203, 103898), (406, 51949)]