19513285

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:369

約数の個数: 32

約数和(自身を含む): 27371520

約数和(自身を除く): 7858235

約数列:

[1, 5, 11, 19, 55, 71, 95, 209, 263, 355, 781, 1045, 1315, 1349, 2893, 3905, 4997, 6745, 14465, 14839, 18673, 24985, 54967, 74195, 93365, 205403, 274835, 354787, 1027015, 1773935, 3902657, 19513285]

約数ペア:

[(1, 19513285), (5, 3902657), (11, 1773935), (19, 1027015), (55, 354787), (71, 274835), (95, 205403), (209, 93365), (263, 74195), (355, 54967), (781, 24985), (1045, 18673), (1315, 14839), (1349, 14465), (2893, 6745), (3905, 4997)]