15721724

素因数分解:

$2^2\times {\mathrm{107}}^1\times {\mathrm{109}}^1\times {\mathrm{337}}^1$

素因数の和:557

約数の個数: 24

約数和(自身を含む): 28108080

約数和(自身を除く): 12386356

約数列:

[1, 2, 4, 107, 109, 214, 218, 337, 428, 436, 674, 1348, 11663, 23326, 36059, 36733, 46652, 72118, 73466, 144236, 146932, 3930431, 7860862, 15721724]

約数ペア:

[(1, 15721724), (2, 7860862), (4, 3930431), (107, 146932), (109, 144236), (214, 73466), (218, 72118), (337, 46652), (428, 36733), (436, 36059), (674, 23326), (1348, 11663)]