19349275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{991}}^1$

素因数の和:1083

約数の個数: 24

約数和(自身を含む): 26569728

約数和(自身を除く): 7220453

約数列:

[1, 5, 11, 25, 55, 71, 275, 355, 781, 991, 1775, 3905, 4955, 10901, 19525, 24775, 54505, 70361, 272525, 351805, 773971, 1759025, 3869855, 19349275]

約数ペア:

[(1, 19349275), (5, 3869855), (11, 1759025), (25, 773971), (55, 351805), (71, 272525), (275, 70361), (355, 54505), (781, 24775), (991, 19525), (1775, 10901), (3905, 4955)]