19641921

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{7517}}^1$

素因数の和:7600

約数の個数: 16

約数和(自身を含む): 28628544

約数和(自身を除く): 8986623

約数列:

[1, 3, 13, 39, 67, 201, 871, 2613, 7517, 22551, 97721, 293163, 503639, 1510917, 6547307, 19641921]

約数ペア:

[(1, 19641921), (3, 6547307), (13, 1510917), (39, 503639), (67, 293163), (201, 97721), (871, 22551), (2613, 7517)]