123778991

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1\times {\mathrm{2801}}^1$

素因数の和:2974

約数の個数: 16

約数和(自身を含む): 145255680

約数和(自身を除く): 21476689

約数列:

[1, 7, 59, 107, 413, 749, 2801, 6313, 19607, 44191, 165259, 299707, 1156813, 2097949, 17682713, 123778991]

約数ペア:

[(1, 123778991), (7, 17682713), (59, 2097949), (107, 1156813), (413, 299707), (749, 165259), (2801, 44191), (6313, 19607)]