21504637

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{14699}}^1$

素因数の和:14736

約数の個数: 16

約数和(自身を含む): 28224000

約数和(自身を除く): 6719363

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 14699, 102893, 161689, 279281, 1131823, 1954967, 3072091, 21504637]

約数ペア:

[(1, 21504637), (7, 3072091), (11, 1954967), (19, 1131823), (77, 279281), (133, 161689), (209, 102893), (1463, 14699)]