21445660

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{2027}}^1$

素因数の和:2082

約数の個数: 36

約数和(自身を含む): 47102328

約数和(自身を除く): 25656668

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 529, 1058, 2027, 2116, 2645, 4054, 5290, 8108, 10135, 10580, 20270, 40540, 46621, 93242, 186484, 233105, 466210, 932420, 1072283, 2144566, 4289132, 5361415, 10722830, 21445660]

約数ペア:

[(1, 21445660), (2, 10722830), (4, 5361415), (5, 4289132), (10, 2144566), (20, 1072283), (23, 932420), (46, 466210), (92, 233105), (115, 186484), (230, 93242), (460, 46621), (529, 40540), (1058, 20270), (2027, 10580), (2116, 10135), (2645, 8108), (4054, 5290)]