19214980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22343}}^1$

素因数の和:22395

約数の個数: 24

約数和(自身を含む): 41291712

約数和(自身を除く): 22076732

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 22343, 44686, 89372, 111715, 223430, 446860, 960749, 1921498, 3842996, 4803745, 9607490, 19214980]

約数ペア:

[(1, 19214980), (2, 9607490), (4, 4803745), (5, 3842996), (10, 1921498), (20, 960749), (43, 446860), (86, 223430), (172, 111715), (215, 89372), (430, 44686), (860, 22343)]