21150118

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{4831}}^1$

素因数の和:5043

約数の個数: 16

約数和(自身を含む): 34790400

約数和(自身を除く): 13640282

約数列:

[1, 2, 11, 22, 199, 398, 2189, 4378, 4831, 9662, 53141, 106282, 961369, 1922738, 10575059, 21150118]

約数ペア:

[(1, 21150118), (2, 10575059), (11, 1922738), (22, 961369), (199, 106282), (398, 53141), (2189, 9662), (4378, 4831)]