21357824

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{4391}}^1$

素因数の和:4426

約数の個数: 36

約数和(自身を含む): 44886240

約数和(自身を除く): 23528416

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 608, 1216, 2432, 4391, 4864, 8782, 17564, 35128, 70256, 83429, 140512, 166858, 281024, 333716, 562048, 667432, 1124096, 1334864, 2669728, 5339456, 10678912, 21357824]

約数ペア:

[(1, 21357824), (2, 10678912), (4, 5339456), (8, 2669728), (16, 1334864), (19, 1124096), (32, 667432), (38, 562048), (64, 333716), (76, 281024), (128, 166858), (152, 140512), (256, 83429), (304, 70256), (608, 35128), (1216, 17564), (2432, 8782), (4391, 4864)]