21347636

素因数分解:

$2^2\times {\mathrm{401}}^1\times {\mathrm{13309}}^1$

素因数の和:13714

約数の個数: 12

約数和(自身を含む): 37454340

約数和(自身を除く): 16106704

約数列:

[1, 2, 4, 401, 802, 1604, 13309, 26618, 53236, 5336909, 10673818, 21347636]

約数ペア:

[(1, 21347636), (2, 10673818), (4, 5336909), (401, 53236), (802, 26618), (1604, 13309)]