20093031

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{257}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 35740224

約数和(自身を除く): 15647193

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 73, 119, 153, 219, 257, 357, 511, 657, 771, 1071, 1241, 1533, 1799, 2313, 3723, 4369, 4599, 5397, 8687, 11169, 13107, 16191, 18761, 26061, 30583, 39321, 56283, 78183, 91749, 131327, 168849, 275247, 318937, 393981, 956811, 1181943, 2232559, 2870433, 6697677, 20093031]

約数ペア:

[(1, 20093031), (3, 6697677), (7, 2870433), (9, 2232559), (17, 1181943), (21, 956811), (51, 393981), (63, 318937), (73, 275247), (119, 168849), (153, 131327), (219, 91749), (257, 78183), (357, 56283), (511, 39321), (657, 30583), (771, 26061), (1071, 18761), (1241, 16191), (1533, 13107), (1799, 11169), (2313, 8687), (3723, 5397), (4369, 4599)]