2445639

素因数分解:

$3^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:275

約数の個数: 24

約数和(自身を含む): 3852288

約数和(自身を除く): 1406649

約数列:

[1, 3, 7, 21, 49, 127, 131, 147, 381, 393, 889, 917, 2667, 2751, 6223, 6419, 16637, 18669, 19257, 49911, 116459, 349377, 815213, 2445639]

約数ペア:

[(1, 2445639), (3, 815213), (7, 349377), (21, 116459), (49, 49911), (127, 19257), (131, 18669), (147, 16637), (381, 6419), (393, 6223), (889, 2751), (917, 2667)]