21931790

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1$

素因数の和:416

約数の個数: 32

約数和(自身を含む): 40435200

約数和(自身を除く): 18503410

約数列:

[1, 2, 5, 10, 103, 107, 199, 206, 214, 398, 515, 535, 995, 1030, 1070, 1990, 11021, 20497, 21293, 22042, 40994, 42586, 55105, 102485, 106465, 110210, 204970, 212930, 2193179, 4386358, 10965895, 21931790]

約数ペア:

[(1, 21931790), (2, 10965895), (5, 4386358), (10, 2193179), (103, 212930), (107, 204970), (199, 110210), (206, 106465), (214, 102485), (398, 55105), (515, 42586), (535, 40994), (995, 22042), (1030, 21293), (1070, 20497), (1990, 11021)]