2639205

素因数分解:

$3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{263}}^1$

素因数の和:497

約数の個数: 24

約数和(自身を含む): 4612608

約数和(自身を除く): 1973403

約数列:

[1, 3, 5, 9, 15, 45, 223, 263, 669, 789, 1115, 1315, 2007, 2367, 3345, 3945, 10035, 11835, 58649, 175947, 293245, 527841, 879735, 2639205]

約数ペア:

[(1, 2639205), (3, 879735), (5, 527841), (9, 293245), (15, 175947), (45, 58649), (223, 11835), (263, 10035), (669, 3945), (789, 3345), (1115, 2367), (1315, 2007)]