19821712

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{65203}}^1$

素因数の和:65230

約数の個数: 20

約数和(自身を含む): 40426480

約数和(自身を除く): 20604768

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 65203, 130406, 260812, 521624, 1043248, 1238857, 2477714, 4955428, 9910856, 19821712]

約数ペア:

[(1, 19821712), (2, 9910856), (4, 4955428), (8, 2477714), (16, 1238857), (19, 1043248), (38, 521624), (76, 260812), (152, 130406), (304, 65203)]