289247763

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{643}}^1\times {\mathrm{691}}^1$

素因数の和:1375

約数の個数: 32

約数和(自身を含む): 456343552

約数和(自身を除く): 167095789

約数列:

[1, 3, 7, 21, 31, 93, 217, 643, 651, 691, 1929, 2073, 4501, 4837, 13503, 14511, 19933, 21421, 59799, 64263, 139531, 149947, 418593, 444313, 449841, 1332939, 3110191, 9330573, 13773703, 41321109, 96415921, 289247763]

約数ペア:

[(1, 289247763), (3, 96415921), (7, 41321109), (21, 13773703), (31, 9330573), (93, 3110191), (217, 1332939), (643, 449841), (651, 444313), (691, 418593), (1929, 149947), (2073, 139531), (4501, 64263), (4837, 59799), (13503, 21421), (14511, 19933)]