2851905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 5278464

約数和(自身を除く): 2426559

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 157, 173, 471, 519, 785, 865, 1099, 1211, 2355, 2595, 3297, 3633, 5495, 6055, 16485, 18165, 27161, 81483, 135805, 190127, 407415, 570381, 950635, 2851905]

約数ペア:

[(1, 2851905), (3, 950635), (5, 570381), (7, 407415), (15, 190127), (21, 135805), (35, 81483), (105, 27161), (157, 18165), (173, 16485), (471, 6055), (519, 5495), (785, 3633), (865, 3297), (1099, 2595), (1211, 2355)]