21148136

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{155501}}^1$

素因数の和:155524

約数の個数: 16

約数和(自身を含む): 41985540

約数和(自身を除く): 20837404

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 155501, 311002, 622004, 1244008, 2643517, 5287034, 10574068, 21148136]

約数ペア:

[(1, 21148136), (2, 10574068), (4, 5287034), (8, 2643517), (17, 1244008), (34, 622004), (68, 311002), (136, 155501)]