20720453

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{367}}^1$

素因数の和:524

約数の個数: 16

約数和(自身を含む): 23122176

約数和(自身を除く): 2401723

約数列:

[1, 13, 43, 101, 367, 559, 1313, 4343, 4771, 15781, 37067, 56459, 205153, 481871, 1593881, 20720453]

約数ペア:

[(1, 20720453), (13, 1593881), (43, 481871), (101, 205153), (367, 56459), (559, 37067), (1313, 15781), (4343, 4771)]