19745955

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15131}}^1$

素因数の和:15171

約数の個数: 24

約数和(自身を含む): 35408880

約数和(自身を除く): 15662925

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 15131, 45393, 75655, 136179, 226965, 438799, 680895, 1316397, 2193995, 3949191, 6581985, 19745955]

約数ペア:

[(1, 19745955), (3, 6581985), (5, 3949191), (9, 2193995), (15, 1316397), (29, 680895), (45, 438799), (87, 226965), (145, 136179), (261, 75655), (435, 45393), (1305, 15131)]