21557242

素因数分解:

$2^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{5441}}^1$

素因数の和:5733

約数の個数: 16

約数和(自身を含む): 37092672

約数和(自身を除く): 15535430

約数列:

[1, 2, 7, 14, 283, 566, 1981, 3962, 5441, 10882, 38087, 76174, 1539803, 3079606, 10778621, 21557242]

約数ペア:

[(1, 21557242), (2, 10778621), (7, 3079606), (14, 1539803), (283, 76174), (566, 38087), (1981, 10882), (3962, 5441)]