19817145

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{467}}^1$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 36796032

約数和(自身を除く): 16978887

約数列:

[1, 3, 5, 9, 15, 23, 41, 45, 69, 115, 123, 205, 207, 345, 369, 467, 615, 943, 1035, 1401, 1845, 2335, 2829, 4203, 4715, 7005, 8487, 10741, 14145, 19147, 21015, 32223, 42435, 53705, 57441, 95735, 96669, 161115, 172323, 287205, 440381, 483345, 861615, 1321143, 2201905, 3963429, 6605715, 19817145]

約数ペア:

[(1, 19817145), (3, 6605715), (5, 3963429), (9, 2201905), (15, 1321143), (23, 861615), (41, 483345), (45, 440381), (69, 287205), (115, 172323), (123, 161115), (205, 96669), (207, 95735), (345, 57441), (369, 53705), (467, 42435), (615, 32223), (943, 21015), (1035, 19147), (1401, 14145), (1845, 10741), (2335, 8487), (2829, 7005), (4203, 4715)]