21785038

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{7559}}^1$

素因数の和:7703

約数の個数: 16

約数和(自身を含む): 35925120

約数和(自身を除く): 14140082

約数列:

[1, 2, 11, 22, 131, 262, 1441, 2882, 7559, 15118, 83149, 166298, 990229, 1980458, 10892519, 21785038]

約数ペア:

[(1, 21785038), (2, 10892519), (11, 1980458), (22, 990229), (131, 166298), (262, 83149), (1441, 15118), (2882, 7559)]