21499078

素因数分解:

$2^1\times {\mathrm{151}}^1\times {\mathrm{257}}^1\times {\mathrm{277}}^1$

素因数の和:687

約数の個数: 16

約数和(自身を含む): 32706144

約数和(自身を除く): 11207066

約数列:

[1, 2, 151, 257, 277, 302, 514, 554, 38807, 41827, 71189, 77614, 83654, 142378, 10749539, 21499078]

約数ペア:

[(1, 21499078), (2, 10749539), (151, 142378), (257, 83654), (277, 77614), (302, 71189), (514, 41827), (554, 38807)]