28331667

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{887}}^1$

素因数の和:929

約数の個数: 48

約数和(自身を含む): 52001280

約数和(自身を除く): 23669613

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 169, 189, 273, 351, 507, 819, 887, 1183, 1521, 2457, 2661, 3549, 4563, 6209, 7983, 10647, 11531, 18627, 23949, 31941, 34593, 55881, 80717, 103779, 149903, 167643, 242151, 311337, 449709, 726453, 1049321, 1349127, 2179359, 3147963, 4047381, 9443889, 28331667]

約数ペア:

[(1, 28331667), (3, 9443889), (7, 4047381), (9, 3147963), (13, 2179359), (21, 1349127), (27, 1049321), (39, 726453), (63, 449709), (91, 311337), (117, 242151), (169, 167643), (189, 149903), (273, 103779), (351, 80717), (507, 55881), (819, 34593), (887, 31941), (1183, 23949), (1521, 18627), (2457, 11531), (2661, 10647), (3549, 7983), (4563, 6209)]