27991845

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1559}}^1$

素因数の和:1599

約数の個数: 64

約数和(自身を含む): 59904000

約数和(自身を除く): 31912155

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 27, 35, 45, 57, 63, 95, 105, 133, 135, 171, 189, 285, 315, 399, 513, 665, 855, 945, 1197, 1559, 1995, 2565, 3591, 4677, 5985, 7795, 10913, 14031, 17955, 23385, 29621, 32739, 42093, 54565, 70155, 88863, 98217, 148105, 163695, 207347, 210465, 266589, 294651, 444315, 491085, 622041, 799767, 1036735, 1332945, 1473255, 1866123, 3110205, 3998835, 5598369, 9330615, 27991845]

約数ペア:

[(1, 27991845), (3, 9330615), (5, 5598369), (7, 3998835), (9, 3110205), (15, 1866123), (19, 1473255), (21, 1332945), (27, 1036735), (35, 799767), (45, 622041), (57, 491085), (63, 444315), (95, 294651), (105, 266589), (133, 210465), (135, 207347), (171, 163695), (189, 148105), (285, 98217), (315, 88863), (399, 70155), (513, 54565), (665, 42093), (855, 32739), (945, 29621), (1197, 23385), (1559, 17955), (1995, 14031), (2565, 10913), (3591, 7795), (4677, 5985)]