21036135

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2381}}^1$

素因数の和:2439

約数の個数: 32

約数和(自身を含む): 36587520

約数和(自身を除く): 15551385

約数列:

[1, 3, 5, 15, 19, 31, 57, 93, 95, 155, 285, 465, 589, 1767, 2381, 2945, 7143, 8835, 11905, 35715, 45239, 73811, 135717, 221433, 226195, 369055, 678585, 1107165, 1402409, 4207227, 7012045, 21036135]

約数ペア:

[(1, 21036135), (3, 7012045), (5, 4207227), (15, 1402409), (19, 1107165), (31, 678585), (57, 369055), (93, 226195), (95, 221433), (155, 135717), (285, 73811), (465, 45239), (589, 35715), (1767, 11905), (2381, 8835), (2945, 7143)]