21869230

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{5347}}^1$

素因数の和:5763

約数の個数: 16

約数和(自身を含む): 39468240

約数和(自身を除く): 17599010

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 5347, 10694, 26735, 53470, 2186923, 4373846, 10934615, 21869230]

約数ペア:

[(1, 21869230), (2, 10934615), (5, 4373846), (10, 2186923), (409, 53470), (818, 26735), (2045, 10694), (4090, 5347)]