21470660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{63149}}^1$

素因数の和:63175

約数の個数: 24

約数和(自身を含む): 47741400

約数和(自身を除く): 26270740

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 63149, 126298, 252596, 315745, 631490, 1073533, 1262980, 2147066, 4294132, 5367665, 10735330, 21470660]

約数ペア:

[(1, 21470660), (2, 10735330), (4, 5367665), (5, 4294132), (10, 2147066), (17, 1262980), (20, 1073533), (34, 631490), (68, 315745), (85, 252596), (170, 126298), (340, 63149)]