21173852

素因数分解:

$2^2\times 7^1\times {\mathrm{677}}^1\times {\mathrm{1117}}^1$

素因数の和:1805

約数の個数: 24

約数和(自身を含む): 42448224

約数和(自身を除く): 21274372

約数列:

[1, 2, 4, 7, 14, 28, 677, 1117, 1354, 2234, 2708, 4468, 4739, 7819, 9478, 15638, 18956, 31276, 756209, 1512418, 3024836, 5293463, 10586926, 21173852]

約数ペア:

[(1, 21173852), (2, 10586926), (4, 5293463), (7, 3024836), (14, 1512418), (28, 756209), (677, 31276), (1117, 18956), (1354, 15638), (2234, 9478), (2708, 7819), (4468, 4739)]