19777905

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{20929}}^1$

素因数の和:20950

約数の個数: 32

約数和(自身を含む): 40185600

約数和(自身を除く): 20407695

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 20929, 62787, 104645, 146503, 188361, 313935, 439509, 565083, 732515, 941805, 1318527, 2197545, 2825415, 3955581, 6592635, 19777905]

約数ペア:

[(1, 19777905), (3, 6592635), (5, 3955581), (7, 2825415), (9, 2197545), (15, 1318527), (21, 941805), (27, 732515), (35, 565083), (45, 439509), (63, 313935), (105, 188361), (135, 146503), (189, 104645), (315, 62787), (945, 20929)]