263912961

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{21347}}^1$

素因数の和:21680

約数の個数: 16

約数和(自身を含む): 380165184

約数和(自身を除く): 116252223

約数列:

[1, 3, 13, 39, 317, 951, 4121, 12363, 21347, 64041, 277511, 832533, 6766999, 20300997, 87970987, 263912961]

約数ペア:

[(1, 263912961), (3, 87970987), (13, 20300997), (39, 6766999), (317, 832533), (951, 277511), (4121, 64041), (12363, 21347)]