18804900978

素因数分解:

$2^1\times 3^3\times {\mathrm{2087}}^1\times {\mathrm{166861}}^1$

素因数の和:168959

約数の個数: 32

約数和(自身を含む): 41808942720

約数和(自身を除く): 23004041742

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 2087, 4174, 6261, 12522, 18783, 37566, 56349, 112698, 166861, 333722, 500583, 1001166, 1501749, 3003498, 4505247, 9010494, 348238907, 696477814, 1044716721, 2089433442, 3134150163, 6268300326, 9402450489, 18804900978]

約数ペア:

[(1, 18804900978), (2, 9402450489), (3, 6268300326), (6, 3134150163), (9, 2089433442), (18, 1044716721), (27, 696477814), (54, 348238907), (2087, 9010494), (4174, 4505247), (6261, 3003498), (12522, 1501749), (18783, 1001166), (37566, 500583), (56349, 333722), (112698, 166861)]