20118959

素因数分解:

$7^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:255

約数の個数: 24

約数和(自身を含む): 24427008

約数和(自身を除く): 4308049

約数列:

[1, 7, 49, 53, 61, 127, 371, 427, 889, 2597, 2989, 3233, 6223, 6731, 7747, 22631, 47117, 54229, 158417, 329819, 379603, 410591, 2874137, 20118959]

約数ペア:

[(1, 20118959), (7, 2874137), (49, 410591), (53, 379603), (61, 329819), (127, 158417), (371, 54229), (427, 47117), (889, 22631), (2597, 7747), (2989, 6731), (3233, 6223)]