21859306

素因数分解:

$2^1\times 7^1\times {\mathrm{839}}^1\times {\mathrm{1861}}^1$

素因数の和:2709

約数の個数: 16

約数和(自身を含む): 37537920

約数和(自身を除く): 15678614

約数列:

[1, 2, 7, 14, 839, 1678, 1861, 3722, 5873, 11746, 13027, 26054, 1561379, 3122758, 10929653, 21859306]

約数ペア:

[(1, 21859306), (2, 10929653), (7, 3122758), (14, 1561379), (839, 26054), (1678, 13027), (1861, 11746), (3722, 5873)]