18711970

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{9403}}^1$

素因数の和:9609

約数の個数: 16

約数和(自身を含む): 33854400

約数和(自身を除く): 15142430

約数列:

[1, 2, 5, 10, 199, 398, 995, 1990, 9403, 18806, 47015, 94030, 1871197, 3742394, 9355985, 18711970]

約数ペア:

[(1, 18711970), (2, 9355985), (5, 3742394), (10, 1871197), (199, 94030), (398, 47015), (995, 18806), (1990, 9403)]