20493621

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{541}}^1$

素因数の和:634

約数の個数: 32

約数和(自身を含む): 32259840

約数和(自身を除く): 11766219

約数列:

[1, 3, 9, 23, 27, 61, 69, 183, 207, 541, 549, 621, 1403, 1623, 1647, 4209, 4869, 12443, 12627, 14607, 33001, 37329, 37881, 99003, 111987, 297009, 335961, 759023, 891027, 2277069, 6831207, 20493621]

約数ペア:

[(1, 20493621), (3, 6831207), (9, 2277069), (23, 891027), (27, 759023), (61, 335961), (69, 297009), (183, 111987), (207, 99003), (541, 37881), (549, 37329), (621, 33001), (1403, 14607), (1623, 12627), (1647, 12443), (4209, 4869)]