12920019

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{32381}}^1$

素因数の和:32410

約数の個数: 16

約数和(自身を含む): 20724480

約数和(自身を除く): 7804461

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 32381, 97143, 226667, 615239, 680001, 1845717, 4306673, 12920019]

約数ペア:

[(1, 12920019), (3, 4306673), (7, 1845717), (19, 680001), (21, 615239), (57, 226667), (133, 97143), (399, 32381)]