19712673

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{641}}^1$

素因数の和:734

約数の個数: 32

約数和(自身を含む): 31432320

約数和(自身を除く): 11719647

約数列:

[1, 3, 9, 17, 27, 51, 67, 153, 201, 459, 603, 641, 1139, 1809, 1923, 3417, 5769, 10251, 10897, 17307, 30753, 32691, 42947, 98073, 128841, 294219, 386523, 730099, 1159569, 2190297, 6570891, 19712673]

約数ペア:

[(1, 19712673), (3, 6570891), (9, 2190297), (17, 1159569), (27, 730099), (51, 386523), (67, 294219), (153, 128841), (201, 98073), (459, 42947), (603, 32691), (641, 30753), (1139, 17307), (1809, 10897), (1923, 10251), (3417, 5769)]