387489249

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{323717}}^1$

素因数の和:323749

約数の個数: 24

約数和(自身を含む): 673333440

約数和(自身を除く): 285844191

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 323717, 971151, 2266019, 2913453, 6150623, 6798057, 18451869, 20394171, 43054361, 55355607, 129163083, 387489249]

約数ペア:

[(1, 387489249), (3, 129163083), (7, 55355607), (9, 43054361), (19, 20394171), (21, 18451869), (57, 6798057), (63, 6150623), (133, 2913453), (171, 2266019), (399, 971151), (1197, 323717)]