31509729

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{5479}}^1$

素因数の和:5562

約数の個数: 20

約数和(自身を含む): 47741760

約数和(自身を除く): 16232031

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5479, 5751, 16437, 49311, 147933, 389009, 443799, 1167027, 3501081, 10503243, 31509729]

約数ペア:

[(1, 31509729), (3, 10503243), (9, 3501081), (27, 1167027), (71, 443799), (81, 389009), (213, 147933), (639, 49311), (1917, 16437), (5479, 5751)]