20996492

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{439}}^1\times {\mathrm{1087}}^1$

素因数の和:1541

約数の個数: 24

約数和(自身を含む): 40212480

約数和(自身を除く): 19215988

約数列:

[1, 2, 4, 11, 22, 44, 439, 878, 1087, 1756, 2174, 4348, 4829, 9658, 11957, 19316, 23914, 47828, 477193, 954386, 1908772, 5249123, 10498246, 20996492]

約数ペア:

[(1, 20996492), (2, 10498246), (4, 5249123), (11, 1908772), (22, 954386), (44, 477193), (439, 47828), (878, 23914), (1087, 19316), (1756, 11957), (2174, 9658), (4348, 4829)]