21453218

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{8887}}^1$

素因数の和:8977

約数の個数: 16

約数和(自身を含む): 34556544

約数和(自身を除く): 13103326

約数列:

[1, 2, 17, 34, 71, 142, 1207, 2414, 8887, 17774, 151079, 302158, 630977, 1261954, 10726609, 21453218]

約数ペア:

[(1, 21453218), (2, 10726609), (17, 1261954), (34, 630977), (71, 302158), (142, 151079), (1207, 17774), (2414, 8887)]