138972442

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{320213}}^1$

素因数の和:320253

約数の個数: 16

約数和(自身を含む): 245924352

約数和(自身を除く): 106951910

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 320213, 640426, 2241491, 4482982, 9926603, 19853206, 69486221, 138972442]

約数ペア:

[(1, 138972442), (2, 69486221), (7, 19853206), (14, 9926603), (31, 4482982), (62, 2241491), (217, 640426), (434, 320213)]