20786744

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{1187}}^1$

素因数の和:1403

約数の個数: 32

約数和(自身を含む): 42768000

約数和(自身を除く): 21981256

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 199, 398, 796, 1187, 1592, 2189, 2374, 4378, 4748, 8756, 9496, 13057, 17512, 26114, 52228, 104456, 236213, 472426, 944852, 1889704, 2598343, 5196686, 10393372, 20786744]

約数ペア:

[(1, 20786744), (2, 10393372), (4, 5196686), (8, 2598343), (11, 1889704), (22, 944852), (44, 472426), (88, 236213), (199, 104456), (398, 52228), (796, 26114), (1187, 17512), (1592, 13057), (2189, 9496), (2374, 8756), (4378, 4748)]