81891938

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1\times {\mathrm{4909}}^1$

素因数の和:5369

約数の個数: 16

約数和(自身を含む): 129624000

約数和(自身を除く): 47732062

約数列:

[1, 2, 19, 38, 439, 878, 4909, 8341, 9818, 16682, 93271, 186542, 2155051, 4310102, 40945969, 81891938]

約数ペア:

[(1, 81891938), (2, 40945969), (19, 4310102), (38, 2155051), (439, 186542), (878, 93271), (4909, 16682), (8341, 9818)]