21000497007

素因数分解:

$3^1\times 7^1\times {\mathrm{3373}}^1\times {\mathrm{296479}}^1$

素因数の和:299862

約数の個数: 16

約数和(自身を含む): 32010352640

約数和(自身を除く): 11009855633

約数列:

[1, 3, 7, 21, 3373, 10119, 23611, 70833, 296479, 889437, 2075353, 6226059, 1000023667, 3000071001, 7000165669, 21000497007]

約数ペア:

[(1, 21000497007), (3, 7000165669), (7, 3000071001), (21, 1000023667), (3373, 6226059), (10119, 2075353), (23611, 889437), (70833, 296479)]