216510339

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{691}}^1$

素因数の和:975

約数の個数: 32

約数和(自身を含む): 318873600

約数和(自身を除く): 102363261

約数列:

[1, 3, 19, 23, 57, 69, 239, 437, 691, 717, 1311, 2073, 4541, 5497, 13129, 13623, 15893, 16491, 39387, 47679, 104443, 165149, 301967, 313329, 495447, 905901, 3137831, 3798427, 9413493, 11395281, 72170113, 216510339]

約数ペア:

[(1, 216510339), (3, 72170113), (19, 11395281), (23, 9413493), (57, 3798427), (69, 3137831), (239, 905901), (437, 495447), (691, 313329), (717, 301967), (1311, 165149), (2073, 104443), (4541, 47679), (5497, 39387), (13129, 16491), (13623, 15893)]