19247961

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 28435968

約数和(自身を除く): 9188007

約数列:

[1, 3, 17, 43, 51, 67, 129, 131, 201, 393, 731, 1139, 2193, 2227, 2881, 3417, 5633, 6681, 8643, 8777, 16899, 26331, 48977, 95761, 146931, 149209, 287283, 377411, 447627, 1132233, 6415987, 19247961]

約数ペア:

[(1, 19247961), (3, 6415987), (17, 1132233), (43, 447627), (51, 377411), (67, 287283), (129, 149209), (131, 146931), (201, 95761), (393, 48977), (731, 26331), (1139, 16899), (2193, 8777), (2227, 8643), (2881, 6681), (3417, 5633)]