21149224

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{155509}}^1$

素因数の和:155532

約数の個数: 16

約数和(自身を含む): 41987700

約数和(自身を除く): 20838476

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 155509, 311018, 622036, 1244072, 2643653, 5287306, 10574612, 21149224]

約数ペア:

[(1, 21149224), (2, 10574612), (4, 5287306), (8, 2643653), (17, 1244072), (34, 622036), (68, 311018), (136, 155509)]