28355589

素因数分解:

$3^4\times {\mathrm{197}}^1\times {\mathrm{1777}}^1$

素因数の和:1986

約数の個数: 20

約数和(自身を含む): 42597324

約数和(自身を除く): 14241735

約数列:

[1, 3, 9, 27, 81, 197, 591, 1773, 1777, 5319, 5331, 15957, 15993, 47979, 143937, 350069, 1050207, 3150621, 9451863, 28355589]

約数ペア:

[(1, 28355589), (3, 9451863), (9, 3150621), (27, 1050207), (81, 350069), (197, 143937), (591, 47979), (1773, 15993), (1777, 15957), (5319, 5331)]