281151

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{89}}^1$

素因数の和:117

約数の個数: 24

約数和(自身を含む): 458640

約数和(自身を除く): 177489

約数列:

[1, 3, 9, 13, 27, 39, 81, 89, 117, 243, 267, 351, 801, 1053, 1157, 2403, 3159, 3471, 7209, 10413, 21627, 31239, 93717, 281151]

約数ペア:

[(1, 281151), (3, 93717), (9, 31239), (13, 21627), (27, 10413), (39, 7209), (81, 3471), (89, 3159), (117, 2403), (243, 1157), (267, 1053), (351, 801)]