31131165

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{9391}}^1$

素因数の和:9429

約数の個数: 32

約数和(自身を含む): 56802816

約数和(自身を除く): 25671651

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 9391, 28173, 46955, 122083, 140865, 159647, 366249, 478941, 610415, 798235, 1831245, 2075411, 2394705, 6226233, 10377055, 31131165]

約数ペア:

[(1, 31131165), (3, 10377055), (5, 6226233), (13, 2394705), (15, 2075411), (17, 1831245), (39, 798235), (51, 610415), (65, 478941), (85, 366249), (195, 159647), (221, 140865), (255, 122083), (663, 46955), (1105, 28173), (3315, 9391)]