20908832

素因数分解:

$2^5\times 7^1\times {\mathrm{269}}^1\times {\mathrm{347}}^1$

素因数の和:633

約数の個数: 48

約数和(自身を含む): 47355840

約数和(自身を除く): 26447008

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 269, 347, 538, 694, 1076, 1388, 1883, 2152, 2429, 2776, 3766, 4304, 4858, 5552, 7532, 8608, 9716, 11104, 15064, 19432, 30128, 38864, 60256, 77728, 93343, 186686, 373372, 653401, 746744, 1306802, 1493488, 2613604, 2986976, 5227208, 10454416, 20908832]

約数ペア:

[(1, 20908832), (2, 10454416), (4, 5227208), (7, 2986976), (8, 2613604), (14, 1493488), (16, 1306802), (28, 746744), (32, 653401), (56, 373372), (112, 186686), (224, 93343), (269, 77728), (347, 60256), (538, 38864), (694, 30128), (1076, 19432), (1388, 15064), (1883, 11104), (2152, 9716), (2429, 8608), (2776, 7532), (3766, 5552), (4304, 4858)]