20201503

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{787}}^1$

素因数の和:1006

約数の個数: 16

約数和(自身を含む): 24459520

約数和(自身を除く): 4258017

約数列:

[1, 7, 19, 133, 193, 787, 1351, 3667, 5509, 14953, 25669, 104671, 151891, 1063237, 2885929, 20201503]

約数ペア:

[(1, 20201503), (7, 2885929), (19, 1063237), (133, 151891), (193, 104671), (787, 25669), (1351, 14953), (3667, 5509)]