20516210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{14347}}^1$

素因数の和:14378

約数の個数: 32

約数和(自身を含む): 43388352

約数和(自身を除く): 22872142

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 14347, 28694, 71735, 143470, 157817, 186511, 315634, 373022, 789085, 932555, 1578170, 1865110, 2051621, 4103242, 10258105, 20516210]

約数ペア:

[(1, 20516210), (2, 10258105), (5, 4103242), (10, 2051621), (11, 1865110), (13, 1578170), (22, 932555), (26, 789085), (55, 373022), (65, 315634), (110, 186511), (130, 157817), (143, 143470), (286, 71735), (715, 28694), (1430, 14347)]