21501994

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{1861}}^1$

素因数の和:2025

約数の個数: 16

約数和(自身を含む): 33180840

約数和(自身を除く): 11678846

約数列:

[1, 2, 53, 106, 109, 218, 1861, 3722, 5777, 11554, 98633, 197266, 202849, 405698, 10750997, 21501994]

約数ペア:

[(1, 21501994), (2, 10750997), (53, 405698), (106, 202849), (109, 197266), (218, 98633), (1861, 11554), (3722, 5777)]