21049136

素因数分解:

$2^4\times {\mathrm{373}}^1\times {\mathrm{3527}}^1$

素因数の和:3908

約数の個数: 20

約数和(自身を含む): 40903632

約数和(自身を除く): 19854496

約数列:

[1, 2, 4, 8, 16, 373, 746, 1492, 2984, 3527, 5968, 7054, 14108, 28216, 56432, 1315571, 2631142, 5262284, 10524568, 21049136]

約数ペア:

[(1, 21049136), (2, 10524568), (4, 5262284), (8, 2631142), (16, 1315571), (373, 56432), (746, 28216), (1492, 14108), (2984, 7054), (3527, 5968)]