20993378

素因数分解:

$2^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{22381}}^1$

素因数の和:22457

約数の個数: 16

約数和(自身を含む): 36527424

約数和(自身を除く): 15534046

約数列:

[1, 2, 7, 14, 67, 134, 469, 938, 22381, 44762, 156667, 313334, 1499527, 2999054, 10496689, 20993378]

約数ペア:

[(1, 20993378), (2, 10496689), (7, 2999054), (14, 1499527), (67, 313334), (134, 156667), (469, 44762), (938, 22381)]