197912912

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{727621}}^1$

素因数の和:727646

約数の個数: 20

約数和(自身を含む): 406013076

約数和(自身を除く): 208100164

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 727621, 1455242, 2910484, 5820968, 11641936, 12369557, 24739114, 49478228, 98956456, 197912912]

約数ペア:

[(1, 197912912), (2, 98956456), (4, 49478228), (8, 24739114), (16, 12369557), (17, 11641936), (34, 5820968), (68, 2910484), (136, 1455242), (272, 727621)]