21683728

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{123203}}^1$

素因数の和:123222

約数の個数: 20

約数和(自身を含む): 45831888

約数和(自身を除く): 24148160

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 123203, 246406, 492812, 985624, 1355233, 1971248, 2710466, 5420932, 10841864, 21683728]

約数ペア:

[(1, 21683728), (2, 10841864), (4, 5420932), (8, 2710466), (11, 1971248), (16, 1355233), (22, 985624), (44, 492812), (88, 246406), (176, 123203)]