30291681

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{79}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 50841600

約数和(自身を除く): 20549919

約数列:

[1, 3, 7, 19, 21, 31, 57, 79, 93, 133, 217, 237, 399, 553, 589, 651, 961, 1501, 1659, 1767, 2449, 2883, 4123, 4503, 6727, 7347, 10507, 12369, 17143, 18259, 20181, 31521, 46531, 51429, 54777, 75919, 127813, 139593, 227757, 325717, 383439, 531433, 977151, 1442461, 1594299, 4327383, 10097227, 30291681]

約数ペア:

[(1, 30291681), (3, 10097227), (7, 4327383), (19, 1594299), (21, 1442461), (31, 977151), (57, 531433), (79, 383439), (93, 325717), (133, 227757), (217, 139593), (237, 127813), (399, 75919), (553, 54777), (589, 51429), (651, 46531), (961, 31521), (1501, 20181), (1659, 18259), (1767, 17143), (2449, 12369), (2883, 10507), (4123, 7347), (4503, 6727)]