20041749

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2719}}^1$

素因数の和:2751

約数の個数: 40

約数和(自身を含む): 36861440

約数和(自身を除く): 16819691

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 273, 351, 567, 819, 1053, 2457, 2719, 7371, 8157, 19033, 24471, 35347, 57099, 73413, 106041, 171297, 220239, 247429, 318123, 513891, 742287, 954369, 1541673, 2226861, 2863107, 6680583, 20041749]

約数ペア:

[(1, 20041749), (3, 6680583), (7, 2863107), (9, 2226861), (13, 1541673), (21, 954369), (27, 742287), (39, 513891), (63, 318123), (81, 247429), (91, 220239), (117, 171297), (189, 106041), (273, 73413), (351, 57099), (567, 35347), (819, 24471), (1053, 19033), (2457, 8157), (2719, 7371)]