1921000208

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{1349017}}^1$

素因数の和:1349114

約数の個数: 20

約数和(自身を含む): 3763760220

約数和(自身を除く): 1842760012

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 1349017, 2698034, 5396068, 10792136, 21584272, 120062513, 240125026, 480250052, 960500104, 1921000208]

約数ペア:

[(1, 1921000208), (2, 960500104), (4, 480250052), (8, 240125026), (16, 120062513), (89, 21584272), (178, 10792136), (356, 5396068), (712, 2698034), (1424, 1349017)]