19070156

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{337}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 39975936

約数和(自身を除く): 20905780

約数列:

[1, 2, 4, 7, 14, 28, 43, 47, 86, 94, 172, 188, 301, 329, 337, 602, 658, 674, 1204, 1316, 1348, 2021, 2359, 4042, 4718, 8084, 9436, 14147, 14491, 15839, 28294, 28982, 31678, 56588, 57964, 63356, 101437, 110873, 202874, 221746, 405748, 443492, 681077, 1362154, 2724308, 4767539, 9535078, 19070156]

約数ペア:

[(1, 19070156), (2, 9535078), (4, 4767539), (7, 2724308), (14, 1362154), (28, 681077), (43, 443492), (47, 405748), (86, 221746), (94, 202874), (172, 110873), (188, 101437), (301, 63356), (329, 57964), (337, 56588), (602, 31678), (658, 28982), (674, 28294), (1204, 15839), (1316, 14491), (1348, 14147), (2021, 9436), (2359, 8084), (4042, 4718)]