200412891

素因数分解:

$3^2\times 7^2\times {\mathrm{454451}}^1$

素因数の和:454471

約数の個数: 18

約数和(自身を含む): 336748932

約数和(自身を除く): 136336041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 454451, 1363353, 3181157, 4090059, 9543471, 22268099, 28630413, 66804297, 200412891]

約数ペア:

[(1, 200412891), (3, 66804297), (7, 28630413), (9, 22268099), (21, 9543471), (49, 4090059), (63, 3181157), (147, 1363353), (441, 454451)]