216917281

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{26737}}^1$

素因数の和:26824

約数の個数: 16

約数和(自身を含む): 265240960

約数和(自身を除く): 48323679

約数列:

[1, 7, 19, 61, 133, 427, 1159, 8113, 26737, 187159, 508003, 1630957, 3556021, 11416699, 30988183, 216917281]

約数ペア:

[(1, 216917281), (7, 30988183), (19, 11416699), (61, 3556021), (133, 1630957), (427, 508003), (1159, 187159), (8113, 26737)]