21181804

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1061}}^1$

素因数の和:1126

約数の個数: 48

約数和(自身を含む): 45674496

約数和(自身を除く): 24492692

約数列:

[1, 2, 4, 7, 14, 23, 28, 31, 46, 62, 92, 124, 161, 217, 322, 434, 644, 713, 868, 1061, 1426, 2122, 2852, 4244, 4991, 7427, 9982, 14854, 19964, 24403, 29708, 32891, 48806, 65782, 97612, 131564, 170821, 230237, 341642, 460474, 683284, 756493, 920948, 1512986, 3025972, 5295451, 10590902, 21181804]

約数ペア:

[(1, 21181804), (2, 10590902), (4, 5295451), (7, 3025972), (14, 1512986), (23, 920948), (28, 756493), (31, 683284), (46, 460474), (62, 341642), (92, 230237), (124, 170821), (161, 131564), (217, 97612), (322, 65782), (434, 48806), (644, 32891), (713, 29708), (868, 24403), (1061, 19964), (1426, 14854), (2122, 9982), (2852, 7427), (4244, 4991)]