16891011

素因数分解:

$3^4\times {\mathrm{151}}^1\times {\mathrm{1381}}^1$

素因数の和:1544

約数の個数: 20

約数和(自身を含む): 25417744

約数和(自身を除く): 8526733

約数列:

[1, 3, 9, 27, 81, 151, 453, 1359, 1381, 4077, 4143, 12231, 12429, 37287, 111861, 208531, 625593, 1876779, 5630337, 16891011]

約数ペア:

[(1, 16891011), (3, 5630337), (9, 1876779), (27, 625593), (81, 208531), (151, 111861), (453, 37287), (1359, 12429), (1381, 12231), (4077, 4143)]