18947488

素因数分解:

$2^5\times 7^1\times {\mathrm{251}}^1\times {\mathrm{337}}^1$

素因数の和:605

約数の個数: 48

約数和(自身を含む): 42928704

約数和(自身を除く): 23981216

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 251, 337, 502, 674, 1004, 1348, 1757, 2008, 2359, 2696, 3514, 4016, 4718, 5392, 7028, 8032, 9436, 10784, 14056, 18872, 28112, 37744, 56224, 75488, 84587, 169174, 338348, 592109, 676696, 1184218, 1353392, 2368436, 2706784, 4736872, 9473744, 18947488]

約数ペア:

[(1, 18947488), (2, 9473744), (4, 4736872), (7, 2706784), (8, 2368436), (14, 1353392), (16, 1184218), (28, 676696), (32, 592109), (56, 338348), (112, 169174), (224, 84587), (251, 75488), (337, 56224), (502, 37744), (674, 28112), (1004, 18872), (1348, 14056), (1757, 10784), (2008, 9436), (2359, 8032), (2696, 7028), (3514, 5392), (4016, 4718)]