28270257

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{991}}^1$

素因数の和:1288

約数の個数: 16

約数和(自身を含む): 38902272

約数和(自身を除く): 10632015

約数列:

[1, 3, 37, 111, 257, 771, 991, 2973, 9509, 28527, 36667, 110001, 254687, 764061, 9423419, 28270257]

約数ペア:

[(1, 28270257), (3, 9423419), (37, 764061), (111, 254687), (257, 110001), (771, 36667), (991, 28527), (2973, 9509)]