21351426

素因数分解:

$2^1\times 3^1\times {\mathrm{67}}^1\times {\mathrm{53113}}^1$

素因数の和:53185

約数の個数: 16

約数和(自身を含む): 43341024

約数和(自身を除く): 21989598

約数列:

[1, 2, 3, 6, 67, 134, 201, 402, 53113, 106226, 159339, 318678, 3558571, 7117142, 10675713, 21351426]

約数ペア:

[(1, 21351426), (2, 10675713), (3, 7117142), (6, 3558571), (67, 318678), (134, 159339), (201, 106226), (402, 53113)]