20517165

素因数分解:

$3^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{401}}^1$

素因数の和:794

約数の個数: 32

約数和(自身を含む): 36662400

約数和(自身を除く): 16145235

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 379, 401, 1137, 1203, 1895, 2005, 3411, 3609, 5685, 6015, 10233, 10827, 17055, 18045, 51165, 54135, 151979, 455937, 759895, 1367811, 2279685, 4103433, 6839055, 20517165]

約数ペア:

[(1, 20517165), (3, 6839055), (5, 4103433), (9, 2279685), (15, 1367811), (27, 759895), (45, 455937), (135, 151979), (379, 54135), (401, 51165), (1137, 18045), (1203, 17055), (1895, 10827), (2005, 10233), (3411, 6015), (3609, 5685)]