21167741847

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{27242911}}^1$

素因数の和:27242958

約数の個数: 16

約数和(自身を含む): 33127380992

約数和(自身を除く): 11959639145

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 27242911, 81728733, 190700377, 572101131, 1007987707, 3023963121, 7055913949, 21167741847]

約数ペア:

[(1, 21167741847), (3, 7055913949), (7, 3023963121), (21, 1007987707), (37, 572101131), (111, 190700377), (259, 81728733), (777, 27242911)]