21338252

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{2083}}^1$

素因数の和:2297

約数の個数: 24

約数和(自身を含む): 40437936

約数和(自身を除く): 19099684

約数列:

[1, 2, 4, 13, 26, 52, 197, 394, 788, 2083, 2561, 4166, 5122, 8332, 10244, 27079, 54158, 108316, 410351, 820702, 1641404, 5334563, 10669126, 21338252]

約数ペア:

[(1, 21338252), (2, 10669126), (4, 5334563), (13, 1641404), (26, 820702), (52, 410351), (197, 108316), (394, 54158), (788, 27079), (2083, 10244), (2561, 8332), (4166, 5122)]