2148905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{439}}^1$

素因数の和:544

約数の個数: 16

約数和(自身を含む): 2851200

約数和(自身を除く): 702295

約数列:

[1, 5, 11, 55, 89, 439, 445, 979, 2195, 4829, 4895, 24145, 39071, 195355, 429781, 2148905]

約数ペア:

[(1, 2148905), (5, 429781), (11, 195355), (55, 39071), (89, 24145), (439, 4895), (445, 4829), (979, 2195)]