21856688

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10271}}^1$

素因数の和:10305

約数の個数: 40

約数和(自身を含む): 50949120

約数和(自身を除く): 29092432

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 10271, 20542, 41084, 71897, 82168, 143794, 164336, 195149, 287588, 390298, 575176, 780596, 1150352, 1366043, 1561192, 2732086, 3122384, 5464172, 10928344, 21856688]

約数ペア:

[(1, 21856688), (2, 10928344), (4, 5464172), (7, 3122384), (8, 2732086), (14, 1561192), (16, 1366043), (19, 1150352), (28, 780596), (38, 575176), (56, 390298), (76, 287588), (112, 195149), (133, 164336), (152, 143794), (266, 82168), (304, 71897), (532, 41084), (1064, 20542), (2128, 10271)]