21676144

素因数分解:

$2^4\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1879}}^1$

素因数の和:1997

約数の個数: 40

約数和(自身を含む): 48488960

約数和(自身を除く): 26812816

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 103, 112, 206, 412, 721, 824, 1442, 1648, 1879, 2884, 3758, 5768, 7516, 11536, 13153, 15032, 26306, 30064, 52612, 105224, 193537, 210448, 387074, 774148, 1354759, 1548296, 2709518, 3096592, 5419036, 10838072, 21676144]

約数ペア:

[(1, 21676144), (2, 10838072), (4, 5419036), (7, 3096592), (8, 2709518), (14, 1548296), (16, 1354759), (28, 774148), (56, 387074), (103, 210448), (112, 193537), (206, 105224), (412, 52612), (721, 30064), (824, 26306), (1442, 15032), (1648, 13153), (1879, 11536), (2884, 7516), (3758, 5768)]