1225539

素因数分解:

$3^2\times 7^3\times {\mathrm{397}}^1$

素因数の和:424

約数の個数: 24

約数和(自身を含む): 2069600

約数和(自身を除く): 844061

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 397, 441, 1029, 1191, 2779, 3087, 3573, 8337, 19453, 25011, 58359, 136171, 175077, 408513, 1225539]

約数ペア:

[(1, 1225539), (3, 408513), (7, 175077), (9, 136171), (21, 58359), (49, 25011), (63, 19453), (147, 8337), (343, 3573), (397, 3087), (441, 2779), (1029, 1191)]