20716784

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{117709}}^1$

素因数の和:117728

約数の個数: 20

約数和(自身を含む): 43788120

約数和(自身を除く): 23071336

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 117709, 235418, 470836, 941672, 1294799, 1883344, 2589598, 5179196, 10358392, 20716784]

約数ペア:

[(1, 20716784), (2, 10358392), (4, 5179196), (8, 2589598), (11, 1883344), (16, 1294799), (22, 941672), (44, 470836), (88, 235418), (176, 117709)]