20605816

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{3041}}^1$

素因数の和:3076

約数の個数: 48

約数和(自身を含む): 48550320

約数和(自身を除く): 27944504

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 121, 154, 242, 308, 484, 616, 847, 968, 1694, 3041, 3388, 6082, 6776, 12164, 21287, 24328, 33451, 42574, 66902, 85148, 133804, 170296, 234157, 267608, 367961, 468314, 735922, 936628, 1471844, 1873256, 2575727, 2943688, 5151454, 10302908, 20605816]

約数ペア:

[(1, 20605816), (2, 10302908), (4, 5151454), (7, 2943688), (8, 2575727), (11, 1873256), (14, 1471844), (22, 936628), (28, 735922), (44, 468314), (56, 367961), (77, 267608), (88, 234157), (121, 170296), (154, 133804), (242, 85148), (308, 66902), (484, 42574), (616, 33451), (847, 24328), (968, 21287), (1694, 12164), (3041, 6776), (3388, 6082)]