21285424

素因数分解:

$2^4\times {\mathrm{271}}^1\times {\mathrm{4909}}^1$

素因数の和:5188

約数の個数: 20

約数和(自身を含む): 41401120

約数和(自身を除く): 20115696

約数列:

[1, 2, 4, 8, 16, 271, 542, 1084, 2168, 4336, 4909, 9818, 19636, 39272, 78544, 1330339, 2660678, 5321356, 10642712, 21285424]

約数ペア:

[(1, 21285424), (2, 10642712), (4, 5321356), (8, 2660678), (16, 1330339), (271, 78544), (542, 39272), (1084, 19636), (2168, 9818), (4336, 4909)]