2101521.00000000

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{127079}}^1$

素因数の和:127128

約数の個数: 20

約数和(自身を含む): 165458160

約数和(自身を除く): 82094336

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 127079, 254158, 508316, 1016632, 2033264, 5210239, 10420478, 20840956, 41681912, 83363824]

約数ペア:

[(1, 83363824), (2, 41681912), (4, 20840956), (8, 10420478), (16, 5210239), (41, 2033264), (82, 1016632), (164, 508316), (328, 254158), (656, 127079)]