19680178

素因数分解:

$2^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{20981}}^1$

素因数の和:21057

約数の個数: 16

約数和(自身を含む): 34242624

約数和(自身を除く): 14562446

約数列:

[1, 2, 7, 14, 67, 134, 469, 938, 20981, 41962, 146867, 293734, 1405727, 2811454, 9840089, 19680178]

約数ペア:

[(1, 19680178), (2, 9840089), (7, 2811454), (14, 1405727), (67, 293734), (134, 146867), (469, 41962), (938, 20981)]