20865124

素因数分解:

$2^2\times 7^1\times {\mathrm{353}}^1\times {\mathrm{2111}}^1$

素因数の和:2475

約数の個数: 24

約数和(自身を含む): 41868288

約数和(自身を除く): 21003164

約数列:

[1, 2, 4, 7, 14, 28, 353, 706, 1412, 2111, 2471, 4222, 4942, 8444, 9884, 14777, 29554, 59108, 745183, 1490366, 2980732, 5216281, 10432562, 20865124]

約数ペア:

[(1, 20865124), (2, 10432562), (4, 5216281), (7, 2980732), (14, 1490366), (28, 745183), (353, 59108), (706, 29554), (1412, 14777), (2111, 9884), (2471, 8444), (4222, 4942)]