19167728

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:485

約数の個数: 40

約数和(自身を含む): 38568960

約数和(自身を除く): 19401232

約数列:

[1, 2, 4, 8, 16, 47, 71, 94, 142, 188, 284, 359, 376, 568, 718, 752, 1136, 1436, 2872, 3337, 5744, 6674, 13348, 16873, 25489, 26696, 33746, 50978, 53392, 67492, 101956, 134984, 203912, 269968, 407824, 1197983, 2395966, 4791932, 9583864, 19167728]

約数ペア:

[(1, 19167728), (2, 9583864), (4, 4791932), (8, 2395966), (16, 1197983), (47, 407824), (71, 269968), (94, 203912), (142, 134984), (188, 101956), (284, 67492), (359, 53392), (376, 50978), (568, 33746), (718, 26696), (752, 25489), (1136, 16873), (1436, 13348), (2872, 6674), (3337, 5744)]