19701286

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{911}}^1\times {\mathrm{983}}^1$

素因数の和:1907

約数の個数: 16

約数和(自身を含む): 32306688

約数和(自身を除く): 12605402

約数列:

[1, 2, 11, 22, 911, 983, 1822, 1966, 10021, 10813, 20042, 21626, 895513, 1791026, 9850643, 19701286]

約数ペア:

[(1, 19701286), (2, 9850643), (11, 1791026), (22, 895513), (911, 21626), (983, 20042), (1822, 10813), (1966, 10021)]