21686096

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:351

約数の個数: 40

約数和(自身を含む): 43200360

約数和(自身を除く): 21514264

約数列:

[1, 2, 4, 8, 16, 89, 97, 157, 178, 194, 314, 356, 388, 628, 712, 776, 1256, 1424, 1552, 2512, 8633, 13973, 15229, 17266, 27946, 30458, 34532, 55892, 60916, 69064, 111784, 121832, 138128, 223568, 243664, 1355381, 2710762, 5421524, 10843048, 21686096]

約数ペア:

[(1, 21686096), (2, 10843048), (4, 5421524), (8, 2710762), (16, 1355381), (89, 243664), (97, 223568), (157, 138128), (178, 121832), (194, 111784), (314, 69064), (356, 60916), (388, 55892), (628, 34532), (712, 30458), (776, 27946), (1256, 17266), (1424, 15229), (1552, 13973), (2512, 8633)]