28872921

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{124991}}^1$

素因数の和:125012

約数の個数: 16

約数和(自身を含む): 47996928

約数和(自身を除く): 19124007

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 124991, 374973, 874937, 1374901, 2624811, 4124703, 9624307, 28872921]

約数ペア:

[(1, 28872921), (3, 9624307), (7, 4124703), (11, 2624811), (21, 1374901), (33, 874937), (77, 374973), (231, 124991)]