21241670

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{124951}}^1$

素因数の和:124975

約数の個数: 16

約数和(自身を含む): 40484448

約数和(自身を除く): 19242778

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 124951, 249902, 624755, 1249510, 2124167, 4248334, 10620835, 21241670]

約数ペア:

[(1, 21241670), (2, 10620835), (5, 4248334), (10, 2124167), (17, 1249510), (34, 624755), (85, 249902), (170, 124951)]