21045675

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{40087}}^1$

素因数の和:40107

約数の個数: 24

約数和(自身を含む): 39767296

約数和(自身を除く): 18721621

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 40087, 120261, 200435, 280609, 601305, 841827, 1002175, 1403045, 3006525, 4209135, 7015225, 21045675]

約数ペア:

[(1, 21045675), (3, 7015225), (5, 4209135), (7, 3006525), (15, 1403045), (21, 1002175), (25, 841827), (35, 601305), (75, 280609), (105, 200435), (175, 120261), (525, 40087)]