21155650

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{24889}}^1$

素因数の和:24918

約数の個数: 24

約数和(自身を含む): 41665860

約数和(自身を除く): 20510210

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 170, 425, 850, 24889, 49778, 124445, 248890, 423113, 622225, 846226, 1244450, 2115565, 4231130, 10577825, 21155650]

約数ペア:

[(1, 21155650), (2, 10577825), (5, 4231130), (10, 2115565), (17, 1244450), (25, 846226), (34, 622225), (50, 423113), (85, 248890), (170, 124445), (425, 49778), (850, 24889)]