18383085

素因数分解:

$3^3\times 5^1\times 7^3\times {\mathrm{397}}^1$

素因数の和:432

約数の個数: 64

約数和(自身を含む): 38208000

約数和(自身を除く): 19824915

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 105, 135, 147, 189, 245, 315, 343, 397, 441, 735, 945, 1029, 1191, 1323, 1715, 1985, 2205, 2779, 3087, 3573, 5145, 5955, 6615, 8337, 9261, 10719, 13895, 15435, 17865, 19453, 25011, 41685, 46305, 53595, 58359, 75033, 97265, 125055, 136171, 175077, 291795, 375165, 408513, 525231, 680855, 875385, 1225539, 2042565, 2626155, 3676617, 6127695, 18383085]

約数ペア:

[(1, 18383085), (3, 6127695), (5, 3676617), (7, 2626155), (9, 2042565), (15, 1225539), (21, 875385), (27, 680855), (35, 525231), (45, 408513), (49, 375165), (63, 291795), (105, 175077), (135, 136171), (147, 125055), (189, 97265), (245, 75033), (315, 58359), (343, 53595), (397, 46305), (441, 41685), (735, 25011), (945, 19453), (1029, 17865), (1191, 15435), (1323, 13895), (1715, 10719), (1985, 9261), (2205, 8337), (2779, 6615), (3087, 5955), (3573, 5145)]