21138705

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{22369}}^1$

素因数の和:22390

約数の個数: 32

約数和(自身を含む): 42950400

約数和(自身を除く): 21811695

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 22369, 67107, 111845, 156583, 201321, 335535, 469749, 603963, 782915, 1006605, 1409247, 2348745, 3019815, 4227741, 7046235, 21138705]

約数ペア:

[(1, 21138705), (3, 7046235), (5, 4227741), (7, 3019815), (9, 2348745), (15, 1409247), (21, 1006605), (27, 782915), (35, 603963), (45, 469749), (63, 335535), (105, 201321), (135, 156583), (189, 111845), (315, 67107), (945, 22369)]