19787455

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{6719}}^1$

素因数の和:6774

約数の個数: 16

約数和(自身を含む): 25804800

約数和(自身を除く): 6017345

約数列:

[1, 5, 19, 31, 95, 155, 589, 2945, 6719, 33595, 127661, 208289, 638305, 1041445, 3957491, 19787455]

約数ペア:

[(1, 19787455), (5, 3957491), (19, 1041445), (31, 638305), (95, 208289), (155, 127661), (589, 33595), (2945, 6719)]