388928449

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{137869}}^1$

素因数の和:137920

約数の個数: 16

約数和(自身を含む): 494126080

約数和(自身を除く): 105197631

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 137869, 965083, 1792297, 4273939, 12546079, 29917573, 55561207, 388928449]

約数ペア:

[(1, 388928449), (7, 55561207), (13, 29917573), (31, 12546079), (91, 4273939), (217, 1792297), (403, 965083), (2821, 137869)]