26638143

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 41969664

約数和(自身を除く): 15331521

約数列:

[1, 3, 7, 21, 47, 137, 141, 197, 329, 411, 591, 959, 987, 1379, 2877, 4137, 6439, 9259, 19317, 26989, 27777, 45073, 64813, 80967, 135219, 188923, 194439, 566769, 1268483, 3805449, 8879381, 26638143]

約数ペア:

[(1, 26638143), (3, 8879381), (7, 3805449), (21, 1268483), (47, 566769), (137, 194439), (141, 188923), (197, 135219), (329, 80967), (411, 64813), (591, 45073), (959, 27777), (987, 26989), (1379, 19317), (2877, 9259), (4137, 6439)]