21258784

素因数分解:

$2^5\times {\mathrm{127}}^1\times {\mathrm{5231}}^1$

素因数の和:5368

約数の個数: 24

約数和(自身を含む): 42190848

約数和(自身を除く): 20932064

約数列:

[1, 2, 4, 8, 16, 32, 127, 254, 508, 1016, 2032, 4064, 5231, 10462, 20924, 41848, 83696, 167392, 664337, 1328674, 2657348, 5314696, 10629392, 21258784]

約数ペア:

[(1, 21258784), (2, 10629392), (4, 5314696), (8, 2657348), (16, 1328674), (32, 664337), (127, 167392), (254, 83696), (508, 41848), (1016, 20924), (2032, 10462), (4064, 5231)]