15243921

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{21997}}^1$

素因数の和:22021

約数の個数: 24

約数和(自身を含む): 27453504

約数和(自身を除く): 12209583

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 21997, 65991, 153979, 197973, 241967, 461937, 725901, 1385811, 1693769, 2177703, 5081307, 15243921]

約数ペア:

[(1, 15243921), (3, 5081307), (7, 2177703), (9, 1693769), (11, 1385811), (21, 725901), (33, 461937), (63, 241967), (77, 197973), (99, 153979), (231, 65991), (693, 21997)]