2100803215

素因数分解:

$5^1\times 7^2\times {\mathrm{571}}^1\times {\mathrm{15017}}^1$

素因数の和:15607

約数の個数: 24

約数和(自身を含む): 2937881232

約数和(自身を除く): 837078017

約数列:

[1, 5, 7, 35, 49, 245, 571, 2855, 3997, 15017, 19985, 27979, 75085, 105119, 139895, 525595, 735833, 3679165, 8574707, 42873535, 60022949, 300114745, 420160643, 2100803215]

約数ペア:

[(1, 2100803215), (5, 420160643), (7, 300114745), (35, 60022949), (49, 42873535), (245, 8574707), (571, 3679165), (2855, 735833), (3997, 525595), (15017, 139895), (19985, 105119), (27979, 75085)]