21113128

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{37171}}^1$

素因数の和:37248

約数の個数: 16

約数和(自身を含む): 40145760

約数和(自身を除く): 19032632

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 37171, 74342, 148684, 297368, 2639141, 5278282, 10556564, 21113128]

約数ペア:

[(1, 21113128), (2, 10556564), (4, 5278282), (8, 2639141), (71, 297368), (142, 148684), (284, 74342), (568, 37171)]