247008321

素因数分解:

$3^2\times 7^1\times {\mathrm{1291}}^1\times {\mathrm{3037}}^1$

素因数の和:4341

約数の個数: 24

約数和(自身を含む): 408209984

約数和(自身を除く): 161201663

約数列:

[1, 3, 7, 9, 21, 63, 1291, 3037, 3873, 9037, 9111, 11619, 21259, 27111, 27333, 63777, 81333, 191331, 3920767, 11762301, 27445369, 35286903, 82336107, 247008321]

約数ペア:

[(1, 247008321), (3, 82336107), (7, 35286903), (9, 27445369), (21, 11762301), (63, 3920767), (1291, 191331), (3037, 81333), (3873, 63777), (9037, 27333), (9111, 27111), (11619, 21259)]