21137712

素因数分解:

$2^4\times 3^1\times {\mathrm{419}}^1\times {\mathrm{1051}}^1$

素因数の和:1481

約数の個数: 40

約数和(自身を含む): 54788160

約数和(自身を除く): 33650448

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 419, 838, 1051, 1257, 1676, 2102, 2514, 3153, 3352, 4204, 5028, 6306, 6704, 8408, 10056, 12612, 16816, 20112, 25224, 50448, 440369, 880738, 1321107, 1761476, 2642214, 3522952, 5284428, 7045904, 10568856, 21137712]

約数ペア:

[(1, 21137712), (2, 10568856), (3, 7045904), (4, 5284428), (6, 3522952), (8, 2642214), (12, 1761476), (16, 1321107), (24, 880738), (48, 440369), (419, 50448), (838, 25224), (1051, 20112), (1257, 16816), (1676, 12612), (2102, 10056), (2514, 8408), (3153, 6704), (3352, 6306), (4204, 5028)]