21106169

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{4289}}^1$

素因数の和:4352

約数の個数: 16

約数和(自身を含む): 26083200

約数和(自身を除く): 4977031

約数列:

[1, 7, 19, 37, 133, 259, 703, 4289, 4921, 30023, 81491, 158693, 570437, 1110851, 3015167, 21106169]

約数ペア:

[(1, 21106169), (7, 3015167), (19, 1110851), (37, 570437), (133, 158693), (259, 81491), (703, 30023), (4289, 4921)]