28706722

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{21391}}^1$

素因数の和:21465

約数の個数: 16

約数和(自身を含む): 47746944

約数和(自身を除く): 19040222

約数列:

[1, 2, 11, 22, 61, 122, 671, 1342, 21391, 42782, 235301, 470602, 1304851, 2609702, 14353361, 28706722]

約数ペア:

[(1, 28706722), (2, 14353361), (11, 2609702), (22, 1304851), (61, 470602), (122, 235301), (671, 42782), (1342, 21391)]