20389912

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{59273}}^1$

素因数の和:59322

約数の個数: 16

約数和(自身を含む): 39120840

約数和(自身を除く): 18730928

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 59273, 118546, 237092, 474184, 2548739, 5097478, 10194956, 20389912]

約数ペア:

[(1, 20389912), (2, 10194956), (4, 5097478), (8, 2548739), (43, 474184), (86, 237092), (172, 118546), (344, 59273)]