289490873

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{1399}}^1$

素因数の和:1557

約数の個数: 24

約数和(自身を含む): 348566400

約数和(自身を除く): 59075527

約数列:

[1, 7, 41, 49, 103, 287, 721, 1399, 2009, 4223, 5047, 9793, 29561, 57359, 68551, 144097, 206927, 401513, 1008679, 2810591, 5907977, 7060753, 41355839, 289490873]

約数ペア:

[(1, 289490873), (7, 41355839), (41, 7060753), (49, 5907977), (103, 2810591), (287, 1008679), (721, 401513), (1399, 206927), (2009, 144097), (4223, 68551), (5047, 57359), (9793, 29561)]