199432257

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{6991}}^1$

素因数の和:7288

約数の個数: 16

約数和(自身を含む): 274198272

約数和(自身を除く): 74766015

約数列:

[1, 3, 37, 111, 257, 771, 6991, 9509, 20973, 28527, 258667, 776001, 1796687, 5390061, 66477419, 199432257]

約数ペア:

[(1, 199432257), (3, 66477419), (37, 5390061), (111, 1796687), (257, 776001), (771, 258667), (6991, 28527), (9509, 20973)]