21401294

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{1999}}^1$

素因数の和:2155

約数の個数: 16

約数和(自身を含む): 33048000

約数和(自身を除く): 11646706

約数列:

[1, 2, 53, 101, 106, 202, 1999, 3998, 5353, 10706, 105947, 201899, 211894, 403798, 10700647, 21401294]

約数ペア:

[(1, 21401294), (2, 10700647), (53, 403798), (101, 211894), (106, 201899), (202, 105947), (1999, 10706), (3998, 5353)]