28566621

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{293}}^1$

素因数の和:482

約数の個数: 32

約数和(自身を含む): 44593920

約数和(自身を除く): 16027299

約数列:

[1, 3, 9, 23, 27, 69, 157, 207, 293, 471, 621, 879, 1413, 2637, 3611, 4239, 6739, 7911, 10833, 20217, 32499, 46001, 60651, 97497, 138003, 181953, 414009, 1058023, 1242027, 3174069, 9522207, 28566621]

約数ペア:

[(1, 28566621), (3, 9522207), (9, 3174069), (23, 1242027), (27, 1058023), (69, 414009), (157, 181953), (207, 138003), (293, 97497), (471, 60651), (621, 46001), (879, 32499), (1413, 20217), (2637, 10833), (3611, 7911), (4239, 6739)]