21565964

素因数分解:

$2^2\times 7^1\times {\mathrm{383}}^1\times {\mathrm{2011}}^1$

素因数の和:2405

約数の個数: 24

約数和(自身を含む): 43266048

約数和(自身を除く): 21700084

約数列:

[1, 2, 4, 7, 14, 28, 383, 766, 1532, 2011, 2681, 4022, 5362, 8044, 10724, 14077, 28154, 56308, 770213, 1540426, 3080852, 5391491, 10782982, 21565964]

約数ペア:

[(1, 21565964), (2, 10782982), (4, 5391491), (7, 3080852), (14, 1540426), (28, 770213), (383, 56308), (766, 28154), (1532, 14077), (2011, 10724), (2681, 8044), (4022, 5362)]