19554969

素因数分解:

$3^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{971}}^1$

素因数の和:1125

約数の個数: 24

約数和(自身を含む): 30583008

約数和(自身を除く): 11028039

約数列:

[1, 3, 7, 21, 49, 137, 147, 411, 959, 971, 2877, 2913, 6713, 6797, 20139, 20391, 47579, 133027, 142737, 399081, 931189, 2793567, 6518323, 19554969]

約数ペア:

[(1, 19554969), (3, 6518323), (7, 2793567), (21, 931189), (49, 399081), (137, 142737), (147, 133027), (411, 47579), (959, 20391), (971, 20139), (2877, 6797), (2913, 6713)]