21087647997

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{607}}^1\times {\mathrm{890789}}^1$

素因数の和:891412

約数の個数: 16

約数和(自身を含む): 30329617920

約数和(自身を除く): 9241969923

約数列:

[1, 3, 13, 39, 607, 1821, 7891, 23673, 890789, 2672367, 11580257, 34740771, 540708923, 1622126769, 7029215999, 21087647997]

約数ペア:

[(1, 21087647997), (3, 7029215999), (13, 1622126769), (39, 540708923), (607, 34740771), (1821, 11580257), (7891, 2672367), (23673, 890789)]