21443685

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1123}}^1$

素因数の和:1217

約数の個数: 32

約数和(自身を含む): 36687360

約数和(自身を除く): 15243675

約数列:

[1, 3, 5, 15, 19, 57, 67, 95, 201, 285, 335, 1005, 1123, 1273, 3369, 3819, 5615, 6365, 16845, 19095, 21337, 64011, 75241, 106685, 225723, 320055, 376205, 1128615, 1429579, 4288737, 7147895, 21443685]

約数ペア:

[(1, 21443685), (3, 7147895), (5, 4288737), (15, 1429579), (19, 1128615), (57, 376205), (67, 320055), (95, 225723), (201, 106685), (285, 75241), (335, 64011), (1005, 21337), (1123, 19095), (1273, 16845), (3369, 6365), (3819, 5615)]