21697344136

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{208628309}}^1$

素因数の和:208628328

約数の個数: 16

約数和(自身を含む): 43811945100

約数和(自身を除く): 22114600964

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 208628309, 417256618, 834513236, 1669026472, 2712168017, 5424336034, 10848672068, 21697344136]

約数ペア:

[(1, 21697344136), (2, 10848672068), (4, 5424336034), (8, 2712168017), (13, 1669026472), (26, 834513236), (52, 417256618), (104, 208628309)]