20421810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{2203}}^1$

素因数の和:2319

約数の個数: 48

約数和(自身を含む): 53636544

約数和(自身を除く): 33214734

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 103, 206, 309, 515, 618, 927, 1030, 1545, 1854, 2203, 3090, 4406, 4635, 6609, 9270, 11015, 13218, 19827, 22030, 33045, 39654, 66090, 99135, 198270, 226909, 453818, 680727, 1134545, 1361454, 2042181, 2269090, 3403635, 4084362, 6807270, 10210905, 20421810]

約数ペア:

[(1, 20421810), (2, 10210905), (3, 6807270), (5, 4084362), (6, 3403635), (9, 2269090), (10, 2042181), (15, 1361454), (18, 1134545), (30, 680727), (45, 453818), (90, 226909), (103, 198270), (206, 99135), (309, 66090), (515, 39654), (618, 33045), (927, 22030), (1030, 19827), (1545, 13218), (1854, 11015), (2203, 9270), (3090, 6609), (4406, 4635)]