21377242

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{7121}}^1$

素因数の和:7221

約数の個数: 16

約数和(自身を含む): 34185600

約数和(自身を除く): 12808358

約数列:

[1, 2, 19, 38, 79, 158, 1501, 3002, 7121, 14242, 135299, 270598, 562559, 1125118, 10688621, 21377242]

約数ペア:

[(1, 21377242), (2, 10688621), (19, 1125118), (38, 562559), (79, 270598), (158, 135299), (1501, 14242), (3002, 7121)]