28138803

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{673}}^1$

素因数の和:875

約数の個数: 32

約数和(自身を含む): 47104512

約数和(自身を除く): 18965709

約数列:

[1, 3, 7, 11, 21, 33, 77, 181, 231, 543, 673, 1267, 1991, 2019, 3801, 4711, 5973, 7403, 13937, 14133, 22209, 41811, 51821, 121813, 155463, 365439, 852691, 1339943, 2558073, 4019829, 9379601, 28138803]

約数ペア:

[(1, 28138803), (3, 9379601), (7, 4019829), (11, 2558073), (21, 1339943), (33, 852691), (77, 365439), (181, 155463), (231, 121813), (543, 51821), (673, 41811), (1267, 22209), (1991, 14133), (2019, 13937), (3801, 7403), (4711, 5973)]