28541396

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{42221}}^1$

素因数の和:42251

約数の個数: 18

約数和(自身を含む): 54086382

約数和(自身を除く): 25544986

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 42221, 84442, 168884, 548873, 1097746, 2195492, 7135349, 14270698, 28541396]

約数ペア:

[(1, 28541396), (2, 14270698), (4, 7135349), (13, 2195492), (26, 1097746), (52, 548873), (169, 168884), (338, 84442), (676, 42221)]