21110170

素因数分解:

$2^1\times 5^1\times {\mathrm{277}}^1\times {\mathrm{7621}}^1$

素因数の和:7905

約数の個数: 16

約数和(自身を含む): 38140488

約数和(自身を除く): 17030318

約数列:

[1, 2, 5, 10, 277, 554, 1385, 2770, 7621, 15242, 38105, 76210, 2111017, 4222034, 10555085, 21110170]

約数ペア:

[(1, 21110170), (2, 10555085), (5, 4222034), (10, 2111017), (277, 76210), (554, 38105), (1385, 15242), (2770, 7621)]