643797234

素因数分解:

$2^1\times 3^4\times {\mathrm{3974057}}^1$

素因数の和:3974071

約数の個数: 20

約数和(自身を含む): 1442583054

約数和(自身を除く): 798785820

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 3974057, 7948114, 11922171, 23844342, 35766513, 71533026, 107299539, 214599078, 321898617, 643797234]

約数ペア:

[(1, 643797234), (2, 321898617), (3, 214599078), (6, 107299539), (9, 71533026), (18, 35766513), (27, 23844342), (54, 11922171), (81, 7948114), (162, 3974057)]