20488188

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{1277}}^1$

素因数の和:1482

約数の個数: 48

約数和(自身を含む): 54964224

約数和(自身を除く): 34476036

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 191, 382, 573, 764, 1146, 1277, 1337, 2292, 2554, 2674, 3831, 4011, 5108, 5348, 7662, 8022, 8939, 15324, 16044, 17878, 26817, 35756, 53634, 107268, 243907, 487814, 731721, 975628, 1463442, 1707349, 2926884, 3414698, 5122047, 6829396, 10244094, 20488188]

約数ペア:

[(1, 20488188), (2, 10244094), (3, 6829396), (4, 5122047), (6, 3414698), (7, 2926884), (12, 1707349), (14, 1463442), (21, 975628), (28, 731721), (42, 487814), (84, 243907), (191, 107268), (382, 53634), (573, 35756), (764, 26817), (1146, 17878), (1277, 16044), (1337, 15324), (2292, 8939), (2554, 8022), (2674, 7662), (3831, 5348), (4011, 5108)]