20453715

素因数分解:

$3^4\times 5^1\times {\mathrm{50503}}^1$

素因数の和:50520

約数の個数: 20

約数和(自身を含む): 36665904

約数和(自身を除く): 16212189

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 50503, 151509, 252515, 454527, 757545, 1363581, 2272635, 4090743, 6817905, 20453715]

約数ペア:

[(1, 20453715), (3, 6817905), (5, 4090743), (9, 2272635), (15, 1363581), (27, 757545), (45, 454527), (81, 252515), (135, 151509), (405, 50503)]