388640707

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{19681}}^1$

素因数の和:19739

約数の個数: 24

約数和(自身を含む): 502599552

約数和(自身を除く): 113958845

約数列:

[1, 7, 13, 31, 49, 91, 217, 403, 637, 1519, 2821, 19681, 19747, 137767, 255853, 610111, 964369, 1790971, 4270777, 7931443, 12536797, 29895439, 55520101, 388640707]

約数ペア:

[(1, 388640707), (7, 55520101), (13, 29895439), (31, 12536797), (49, 7931443), (91, 4270777), (217, 1790971), (403, 964369), (637, 610111), (1519, 255853), (2821, 137767), (19681, 19747)]