20708175

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{9521}}^1$

素因数の和:9563

約数の個数: 24

約数和(自身を含む): 35421840

約数和(自身を除く): 14713665

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 145, 435, 725, 2175, 9521, 28563, 47605, 142815, 238025, 276109, 714075, 828327, 1380545, 4141635, 6902725, 20708175]

約数ペア:

[(1, 20708175), (3, 6902725), (5, 4141635), (15, 1380545), (25, 828327), (29, 714075), (75, 276109), (87, 238025), (145, 142815), (435, 47605), (725, 28563), (2175, 9521)]