19905298

素因数分解:

$2^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{21221}}^1$

素因数の和:21297

約数の個数: 16

約数和(自身を含む): 34634304

約数和(自身を除く): 14729006

約数列:

[1, 2, 7, 14, 67, 134, 469, 938, 21221, 42442, 148547, 297094, 1421807, 2843614, 9952649, 19905298]

約数ペア:

[(1, 19905298), (2, 9952649), (7, 2843614), (14, 1421807), (67, 297094), (134, 148547), (469, 42442), (938, 21221)]