19031985

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1949}}^1$

素因数の和:1998

約数の個数: 48

約数和(自身を含む): 38937600

約数和(自身を除く): 19905615

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 93, 105, 155, 217, 279, 315, 465, 651, 1085, 1395, 1949, 1953, 3255, 5847, 9745, 9765, 13643, 17541, 29235, 40929, 60419, 68215, 87705, 122787, 181257, 204645, 302095, 422933, 543771, 613935, 906285, 1268799, 2114665, 2718855, 3806397, 6343995, 19031985]

約数ペア:

[(1, 19031985), (3, 6343995), (5, 3806397), (7, 2718855), (9, 2114665), (15, 1268799), (21, 906285), (31, 613935), (35, 543771), (45, 422933), (63, 302095), (93, 204645), (105, 181257), (155, 122787), (217, 87705), (279, 68215), (315, 60419), (465, 40929), (651, 29235), (1085, 17541), (1395, 13643), (1949, 9765), (1953, 9745), (3255, 5847)]