20886404

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3989}}^1$

素因数の和:4028

約数の個数: 48

約数和(自身を含む): 48263040

約数和(自身を除く): 27376636

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 68, 77, 119, 154, 187, 238, 308, 374, 476, 748, 1309, 2618, 3989, 5236, 7978, 15956, 27923, 43879, 55846, 67813, 87758, 111692, 135626, 175516, 271252, 307153, 474691, 614306, 745943, 949382, 1228612, 1491886, 1898764, 2983772, 5221601, 10443202, 20886404]

約数ペア:

[(1, 20886404), (2, 10443202), (4, 5221601), (7, 2983772), (11, 1898764), (14, 1491886), (17, 1228612), (22, 949382), (28, 745943), (34, 614306), (44, 474691), (68, 307153), (77, 271252), (119, 175516), (154, 135626), (187, 111692), (238, 87758), (308, 67813), (374, 55846), (476, 43879), (748, 27923), (1309, 15956), (2618, 7978), (3989, 5236)]