28782286

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{20887}}^1$

素因数の和:20955

約数の個数: 16

約数和(自身を含む): 47373984

約数和(自身を除く): 18591698

約数列:

[1, 2, 13, 26, 53, 106, 689, 1378, 20887, 41774, 271531, 543062, 1107011, 2214022, 14391143, 28782286]

約数ペア:

[(1, 28782286), (2, 14391143), (13, 2214022), (26, 1107011), (53, 543062), (106, 271531), (689, 41774), (1378, 20887)]