19945863

素因数分解:

$3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4337}}^1$

素因数の和:4423

約数の個数: 24

約数和(自身を含む): 33385248

約数和(自身を除く): 13439385

約数列:

[1, 3, 7, 9, 21, 63, 73, 219, 511, 657, 1533, 4337, 4599, 13011, 30359, 39033, 91077, 273231, 316601, 949803, 2216207, 2849409, 6648621, 19945863]

約数ペア:

[(1, 19945863), (3, 6648621), (7, 2849409), (9, 2216207), (21, 949803), (63, 316601), (73, 273231), (219, 91077), (511, 39033), (657, 30359), (1533, 13011), (4337, 4599)]