21137067

素因数分解:

$3^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2137}}^1$

素因数の和:2307

約数の個数: 24

約数和(自身を含む): 35131616

約数和(自身を除く): 13994549

約数列:

[1, 3, 7, 9, 21, 63, 157, 471, 1099, 1413, 2137, 3297, 6411, 9891, 14959, 19233, 44877, 134631, 335509, 1006527, 2348563, 3019581, 7045689, 21137067]

約数ペア:

[(1, 21137067), (3, 7045689), (7, 3019581), (9, 2348563), (21, 1006527), (63, 335509), (157, 134631), (471, 44877), (1099, 19233), (1413, 14959), (2137, 9891), (3297, 6411)]