21082984

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2777}}^1$

素因数の和:2869

約数の個数: 32

約数和(自身を含む): 43170120

約数和(自身を除く): 22087136

約数列:

[1, 2, 4, 8, 13, 26, 52, 73, 104, 146, 292, 584, 949, 1898, 2777, 3796, 5554, 7592, 11108, 22216, 36101, 72202, 144404, 202721, 288808, 405442, 810884, 1621768, 2635373, 5270746, 10541492, 21082984]

約数ペア:

[(1, 21082984), (2, 10541492), (4, 5270746), (8, 2635373), (13, 1621768), (26, 810884), (52, 405442), (73, 288808), (104, 202721), (146, 144404), (292, 72202), (584, 36101), (949, 22216), (1898, 11108), (2777, 7592), (3796, 5554)]