19785285

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1091}}^1$

素因数の和:1146

約数の個数: 48

約数和(自身を含む): 38158848

約数和(自身を除く): 18373563

約数列:

[1, 3, 5, 9, 13, 15, 31, 39, 45, 65, 93, 117, 155, 195, 279, 403, 465, 585, 1091, 1209, 1395, 2015, 3273, 3627, 5455, 6045, 9819, 14183, 16365, 18135, 33821, 42549, 49095, 70915, 101463, 127647, 169105, 212745, 304389, 439673, 507315, 638235, 1319019, 1521945, 2198365, 3957057, 6595095, 19785285]

約数ペア:

[(1, 19785285), (3, 6595095), (5, 3957057), (9, 2198365), (13, 1521945), (15, 1319019), (31, 638235), (39, 507315), (45, 439673), (65, 304389), (93, 212745), (117, 169105), (155, 127647), (195, 101463), (279, 70915), (403, 49095), (465, 42549), (585, 33821), (1091, 18135), (1209, 16365), (1395, 14183), (2015, 9819), (3273, 6045), (3627, 5455)]