21303982

素因数分解:

$2^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{6367}}^1$

素因数の和:6615

約数の個数: 16

約数和(自身を含む): 36679680

約数和(自身を除く): 15375698

約数列:

[1, 2, 7, 14, 239, 478, 1673, 3346, 6367, 12734, 44569, 89138, 1521713, 3043426, 10651991, 21303982]

約数ペア:

[(1, 21303982), (2, 10651991), (7, 3043426), (14, 1521713), (239, 89138), (478, 44569), (1673, 12734), (3346, 6367)]