19893136

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{9491}}^1$

素因数の和:9630

約数の個数: 20

約数和(自身を含む): 38841264

約数和(自身を除く): 18948128

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 9491, 18982, 37964, 75928, 151856, 1243321, 2486642, 4973284, 9946568, 19893136]

約数ペア:

[(1, 19893136), (2, 9946568), (4, 4973284), (8, 2486642), (16, 1243321), (131, 151856), (262, 75928), (524, 37964), (1048, 18982), (2096, 9491)]