19721296

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4759}}^1$

素因数の和:4811

約数の個数: 40

約数和(自身を含む): 44858240

約数和(自身を除く): 25136944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 56, 74, 112, 148, 259, 296, 518, 592, 1036, 2072, 4144, 4759, 9518, 19036, 33313, 38072, 66626, 76144, 133252, 176083, 266504, 352166, 533008, 704332, 1232581, 1408664, 2465162, 2817328, 4930324, 9860648, 19721296]

約数ペア:

[(1, 19721296), (2, 9860648), (4, 4930324), (7, 2817328), (8, 2465162), (14, 1408664), (16, 1232581), (28, 704332), (37, 533008), (56, 352166), (74, 266504), (112, 176083), (148, 133252), (259, 76144), (296, 66626), (518, 38072), (592, 33313), (1036, 19036), (2072, 9518), (4144, 4759)]