20815984

素因数分解:

$2^4\times 7^3\times {\mathrm{3793}}^1$

素因数の和:3822

約数の個数: 40

約数和(自身を含む): 47045600

約数和(自身を除く): 26229616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2744, 3793, 5488, 7586, 15172, 26551, 30344, 53102, 60688, 106204, 185857, 212408, 371714, 424816, 743428, 1300999, 1486856, 2601998, 2973712, 5203996, 10407992, 20815984]

約数ペア:

[(1, 20815984), (2, 10407992), (4, 5203996), (7, 2973712), (8, 2601998), (14, 1486856), (16, 1300999), (28, 743428), (49, 424816), (56, 371714), (98, 212408), (112, 185857), (196, 106204), (343, 60688), (392, 53102), (686, 30344), (784, 26551), (1372, 15172), (2744, 7586), (3793, 5488)]